February 2012 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH] ASoC: spitz - Fix kcontrols to use card instead of codec.
by Liam Girdwood 16 Feb '12

16 Feb '12

Machine kcontrols now use card instead of codec for thier "chip". Signed-off-by: Liam Girdwood <lrg(a)ti.com> --- sound/soc/pxa/spitz.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-) diff --git a/sound/soc/pxa/spitz.c b/sound/soc/pxa/spitz.c index 90c5245..4d108dc 100644 --- a/sound/soc/pxa/spitz.c +++ b/sound/soc/pxa/spitz.c @@ -44,9 +44,9 @@ static int spitz_jack_func; static int spitz_spk_func; static int spitz_mic_gpio; -static void spitz_ext_control(struct snd_soc_codec *codec) +static void spitz_ext_control(struct snd_soc_card *card) { - struct snd_soc_dapm_context *dapm = &codec->dapm; + struct snd_soc_dapm_context *dapm = &card->dapm; if (spitz_spk_func == SPITZ_SPK_ON) snd_soc_dapm_enable_pin(dapm, "Ext Spk"); @@ -173,13 +173,13 @@ static int spitz_get_jack(struct snd_kcontrol *kcontrol, static int spitz_set_jack(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); if (spitz_jack_func == ucontrol->value.integer.value[0]) return 0; spitz_jack_func = ucontrol->value.integer.value[0]; - spitz_ext_control(codec); + spitz_ext_control(card); return 1; } @@ -193,13 +193,13 @@ static int spitz_get_spk(struct snd_kcontrol *kcontrol, static int spitz_set_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); if (spitz_spk_func == ucontrol->value.integer.value[0]) return 0; spitz_spk_func = ucontrol->value.integer.value[0]; - spitz_ext_control(codec); + spitz_ext_control(card); return 1; } -- 1.7.5.4

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[alsa-devel] Strange behaviour on audio chipset VIA VT2021 codec
by Marco De Maio - BETTINI Srl 16 Feb '12

16 Feb '12

Hello, i need to develop for my work an audio recorder application. I have to develop the software on Linux OS (Ubuntu 8.04 with kernel 2.6.23.13), and the motherboard is Gigabyte GA-G41MT-S2P (rev. 1.3) where is installed the integrated audio chipset VIA VT2021 codec. I upgraded the alsa driver to 1.0.25 version for support of audio chipset VIA VT2021. I downloaded the driver and compiled it with the following option ./configure --with-cards=hda-intel --with-sequencer=yes and i done some experiments with the following simple application example with alsa lib: #include <alsa/asoundlib.h> int main() { int rc; int size; snd_pcm_t *handle; snd_pcm_hw_params_t *params; unsigned int val; int dir; snd_pcm_uframes_t frames; char *buffer; /* Open PCM device for playback. */ rc = snd_pcm_open(&handle, "default", SND_PCM_STREAM_CAPTURE, 0); if (rc < 0) { fprintf(stderr, "unable to open pcm device: %s\n", snd_strerror(rc)); exit(1); } /* Allocate a hardware parameters object. */ snd_pcm_hw_params_alloca(&params); /* Fill it in with default values. */ snd_pcm_hw_params_any(handle, params); /* Set the desired hardware parameters. */ /* Interleaved mode */ snd_pcm_hw_params_set_access(handle, params, SND_PCM_ACCESS_RW_INTERLEAVED); /* Signed 16-bit little-endian format */ snd_pcm_hw_params_set_format(handle, params, SND_PCM_FORMAT_S16_LE); /* Two channels (stereo) */ snd_pcm_hw_params_set_channels(handle, params, 2); /* 44100 bits/second sampling rate (CD quality) */ val = 44100; snd_pcm_hw_params_set_rate_near(handle, params, &val, &dir); /* Set period size to 32 frames. */ frames = 32; snd_pcm_hw_params_set_period_size_near(handle, params, &frames, &dir); /* Write the parameters to the driver */ rc = snd_pcm_hw_params(handle, params); if (rc < 0) { fprintf(stderr, "unable to set hw parameters: %s\n", snd_strerror(rc)); exit(1); } /* Use a buffer large enough to hold one period */ snd_pcm_hw_params_get_period_size(params, &frames, &dir); size = frames * 4; /* 2 bytes/sample, 2 channels */ buffer = (char *) malloc(size); snd_pcm_hw_params_get_period_time(params, &val, &dir); while (1) { printf ("Capture data\n"); rc = snd_pcm_readi(handle, buffer, size); if (rc == -EAGAIN) { fprintf(stderr, "EAGAIN occurred\n"); snd_pcm_prepare(handle); } else if (rc == -EPIPE) { fprintf(stderr, "EPIPE occurred\n"); snd_pcm_prepare(handle); } else if (rc == -ESTRPIPE) { fprintf(stderr, "ESTRPIPE occurred\n"); snd_pcm_prepare(handle); } else if (rc > 0) { fprintf(stderr, "read %d ok\n", rc); } else { fprintf(stderr, "error occurred %s\n", snd_strerror(rc)); exit (1); } } snd_pcm_drain(handle); snd_pcm_close(handle); free(buffer); return 0; } Running the example above, I found the following behaviors: 1) Until there is no mic plugged, the application stop on snd_pcm_readi. When mic is plugged, the application starts again. So when i unplug mic the application stops on snd_pcm_readi, when i plug mic the application starts again, and so on. I want to point out that i achieve the same result with a simple stand alone jack. 2) If i reboot my machine with mic plugged, after restart, I run the application but it stop immediately on snd_pcm_readi and I need to unplug/plug the mic to stats again the application. This behavior seems to me quite strange. Please someone could help me to figure out why this behavior ? Maybe something wrong with my example ? Maybe something wrong with compiling options of the driver or maybe into the drivers itself ? I tried the same application on a different mainboard with Realtek ALC889 codec, and the applications never stops on snd_pcm_readi (I suppose this is the correct behavior), and run correctly. Let me know if you need more information about. Thank to all in advance. Marco

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Re: [alsa-devel] Bug report - patch_realtek.c - Laptop HP COMPAQ B1900 Series
by Takashi Iwai 16 Feb '12

16 Feb '12

At Wed, 15 Feb 2012 17:08:45 +0800, joey.jiaojg wrote: > > Well, now I have fully fixed the speaker/headphone issue for HP COMPAQ > B1900 by adding a new model=b1900 into patch_realtek.c which also can > automute by detect HP state. That's great. > As I cannot compile alsa-driver-1.0.25 on my ubuntu 11.10, so I modified > based on kernel-3.0.13 (alsa version 1.0.24) from ubuntu src. > Attached with stocked source and my updated one, please consider adding > into next alsa-driver. Could you simply give a patch file (with "diff -up")? Then I can check your changes more easily. thanks, Takashi

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[alsa-devel] hda_intel:azx_get_response timeout, switching to single_cmd mode: last cmd=0x00070503
by Sirus Jolt 16 Feb '12

16 Feb '12

Hi, I've got some problems to start session, because i've got the message like subject: hda_intel: azx_get_response timeout, switching to single_cmd mode: last cmd=0x00070503 I have no idea about the problem, I need your help. In some threat mention it but don't have the answer. thanks

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[alsa-devel] ASoC: A missing entry in wm2200_bclk_rates_cd array?
by Axel Lin 16 Feb '12

16 Feb '12

Hi Mark, WM2200_NUM_BCLK_RATES is 12. It looks like there is a missing entry in wm2200_bclk_rates_cd array. static int wm2200_bclk_rates_cd[WM2200_NUM_BCLK_RATES] = { 5644800, 2882400, 1881600, 1411200, 705600, 470400, 352800, 176400, 117600, 88200, 58800, }; Axel

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[alsa-devel] [PATCH] ASoC: Show device id in the debug message
by Axel Lin 16 Feb '12

16 Feb '12

Show the id we read when the id mismatch is detected. This is useful for debugging. Signed-off-by: Axel Lin <axel.lin(a)gmail.com> --- sound/soc/codecs/wm8962.c | 2 +- sound/soc/codecs/wm8996.c | 2 +- sound/soc/codecs/wm9090.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c index 172dcac..5a6516e 100644 --- a/sound/soc/codecs/wm8962.c +++ b/sound/soc/codecs/wm8962.c @@ -3718,7 +3718,7 @@ static __devinit int wm8962_i2c_probe(struct i2c_client *i2c, } if (reg != 0x6243) { dev_err(&i2c->dev, - "Device is not a WM8962, ID %x != 0x6243\n", ret); + "Device is not a WM8962, ID %x != 0x6243\n", reg); ret = -EINVAL; goto err_regmap; } diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index 759ea69..c3bde4a 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -3185,7 +3185,7 @@ static __devinit int wm8996_i2c_probe(struct i2c_client *i2c, goto err_regmap; } if (reg != 0x8915) { - dev_err(&i2c->dev, "Device is not a WM8996, ID %x\n", ret); + dev_err(&i2c->dev, "Device is not a WM8996, ID %x\n", reg); ret = -EINVAL; goto err_regmap; } diff --git a/sound/soc/codecs/wm9090.c b/sound/soc/codecs/wm9090.c index e8280ee..4b263b6 100644 --- a/sound/soc/codecs/wm9090.c +++ b/sound/soc/codecs/wm9090.c @@ -639,7 +639,7 @@ static int wm9090_i2c_probe(struct i2c_client *i2c, if (ret < 0) goto err; if (reg != 0x9093) { - dev_err(&i2c->dev, "Device is not a WM9090, ID=%x\n", ret); + dev_err(&i2c->dev, "Device is not a WM9090, ID=%x\n", reg); ret = -ENODEV; goto err; } -- 1.7.5.4

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[alsa-devel] [PATCH] ASoC: Get correct revision id for wm2200
by Axel Lin 16 Feb '12

16 Feb '12

Signed-off-by: Axel Lin <axel.lin(a)gmail.com> --- sound/soc/codecs/wm2200.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/sound/soc/codecs/wm2200.c b/sound/soc/codecs/wm2200.c index a9388df..acbdc5f 100644 --- a/sound/soc/codecs/wm2200.c +++ b/sound/soc/codecs/wm2200.c @@ -2084,7 +2084,7 @@ static __devinit int wm2200_i2c_probe(struct i2c_client *i2c, goto err_reset; } - wm2200->rev = ret & WM2200_DEVICE_REVISION_MASK; + wm2200->rev = reg & WM2200_DEVICE_REVISION_MASK; dev_info(&i2c->dev, "revision %c\n", wm2200->rev + 'A'); -- 1.7.5.4

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Re: [alsa-devel] [PATCH v5 2/2] mxs-dma : rewrite the last parameter of mxs_dma_prep_slave_sg()
by Shawn Guo 16 Feb '12

16 Feb '12

On Thu, Feb 16, 2012 at 10:05:26AM +0800, Huang Shijie wrote: > Hi Shawn: > >I'm trying to give it a test. But it does not apply on either mainline > >or next tree. You probably had a wrong base for this patch. > > > thanks for your work. > > As the previous email said, this patch set bases on :[PATCH v2] > mtd/gpmi : add gpmi support for mx6q. > Then you are doing something wrong. This series should be based on mainline, and then you add imx6q support on top of this series. -- Regards, Shawn

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Re: [alsa-devel] [PATCH v5 1/2] mxs-dma : move the mxs dma.h to a more common place
by Shawn Guo 15 Feb '12

15 Feb '12

On Mon, Feb 13, 2012 at 01:25:55PM +0800, Huang Shijie wrote: > Move the header to a more common place. > The mxs dma engine is not only used in mx23/mx28, but also used > in mx50/mx6q. It will also be used in the future chips. > > Rename it to mxs-dma.h, and create a new folder include/linux/fsl/ to > store the Freescale's header files. > > change mxs-dma driver, mxs-mmc driver, gpmi-nand driver, mxs-saif driver > to the new header file. > > Signed-off-by: Huang Shijie <b32955(a)freescale.com> Acked-by: Shawn Guo <shawn.guo(a)linaro.org>

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Re: [alsa-devel] [PATCH v5 2/2] mxs-dma : rewrite the last parameter of mxs_dma_prep_slave_sg()
by Shawn Guo 15 Feb '12

15 Feb '12

On Mon, Feb 13, 2012 at 01:25:56PM +0800, Huang Shijie wrote: > [1] Background : > The GPMI does ECC read page operation with a DMA chain consist of three DMA > Command Structures. The middle one of the chain is used to enable the BCH, > and read out the NAND page. > > The WAIT4END(wait for command end) is a comunication signal between > the GPMI and MXS-DMA. > > [2] The current DMA code sets the WAIT4END bit at the last one, such as: > > +-----+ +-----+ +-----+ > | cmd | ------------> | cmd | ------------------> | cmd | > +-----+ +-----+ +-----+ > ^ > | > | > set WAIT4END here > > This chain works fine in the mx23/mx28. > > [3] But in the new GPMI version (used in MX50/MX60), the WAIT4END bit should > be set not only at the last DMA Command Structure, > but also at the middle one, such as: > > +-----+ +-----+ +-----+ > | cmd | ------------> | cmd | ------------------> | cmd | > +-----+ +-----+ +-----+ > ^ ^ > | | > | | > set WAIT4END here too set WAIT4END here > > If we do not set WAIT4END, the BCH maybe stalls in "ECC reading page" state. > In the next ECC write page operation, a DMA-timeout occurs. > This has been catched in the MX6Q board. > > [4] In order to fix the bug, rewrite the last parameter of mxs_dma_prep_slave_sg(), > and use the dma_ctrl_flags: > --------------------------------------------------------- > DMA_PREP_INTERRUPT : append a new DMA Command Structrue. > DMA_CTRL_ACK : set the WAIT4END bit for this DMA Command Structure. > --------------------------------------------------------- > > [5] changes to the relative drivers: > <1> For mxs-mmc driver, just use the new flags, do not change any logic. > <2> For gpmi-nand driver, and use the new flags to set the DMA chain for > ecc read page. > > Signed-off-by: Huang Shijie <b32955(a)freescale.com> > --- > drivers/dma/mxs-dma.c | 32 ++++++++++++++++++++++++++++---- > drivers/mmc/host/mxs-mmc.c | 10 +++++----- > drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 19 +++++++++++++------ > 3 files changed, 46 insertions(+), 15 deletions(-) > I'm trying to give it a test. But it does not apply on either mainline or next tree. You probably had a wrong base for this patch. > diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c > index 0afcedb..0ddfd30 100644 > --- a/drivers/dma/mxs-dma.c > +++ b/drivers/dma/mxs-dma.c > @@ -349,10 +349,32 @@ static void mxs_dma_free_chan_resources(struct dma_chan *chan) > clk_disable_unprepare(mxs_dma->clk); > } > > +/* > + * How to use the flags for ->device_prep_slave_sg() : > + * [1] If there is only one DMA command in the DMA chain, the code should be: > + * ...... > + * ->device_prep_slave_sg(DMA_CTRL_ACK); > + * ...... > + * [2] If there are two DMA commands in the DMA chain, the code should be > + * ...... > + * ->device_prep_slave_sg(0); > + * ...... > + * ->device_prep_slave_sg(DMA_PREP_INTERRUPT | DMA_CTRL_ACK); > + * ...... > + * [3] If there are more than two DMA commands in the DMA chain, the code > + * should be: > + * ...... > + * ->device_prep_slave_sg(0); // First > + * ...... > + * ->device_prep_slave_sg(DMA_PREP_INTERRUPT [| DMA_CTRL_ACK]); > + * ...... > + * ->device_prep_slave_sg(DMA_PREP_INTERRUPT | DMA_CTRL_ACK); // Last > + * ...... > + */ > static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg( > struct dma_chan *chan, struct scatterlist *sgl, > unsigned int sg_len, enum dma_transfer_direction direction, > - unsigned long append) > + unsigned long flags) > { > struct mxs_dma_chan *mxs_chan = to_mxs_dma_chan(chan); > struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma; > @@ -360,6 +382,7 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg( > struct scatterlist *sg; > int i, j; > u32 *pio; > + bool append = flags & DMA_PREP_INTERRUPT; > int idx = append ? mxs_chan->desc_count : 0; > > if (mxs_chan->status == DMA_IN_PROGRESS && !append) > @@ -386,7 +409,6 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg( > ccw->bits |= CCW_CHAIN; > ccw->bits &= ~CCW_IRQ; > ccw->bits &= ~CCW_DEC_SEM; > - ccw->bits &= ~CCW_WAIT4END; > } else { > idx = 0; > } > @@ -401,7 +423,8 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg( > ccw->bits = 0; > ccw->bits |= CCW_IRQ; > ccw->bits |= CCW_DEC_SEM; > - ccw->bits |= CCW_WAIT4END; > + if (flags & DMA_CTRL_ACK) > + ccw->bits |= CCW_WAIT4END; > ccw->bits |= CCW_HALT_ON_TERM; > ccw->bits |= CCW_TERM_FLUSH; > ccw->bits |= BF_CCW(sg_len, PIO_NUM); > @@ -432,7 +455,8 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg( > ccw->bits &= ~CCW_CHAIN; > ccw->bits |= CCW_IRQ; > ccw->bits |= CCW_DEC_SEM; > - ccw->bits |= CCW_WAIT4END; > + if (flags & DMA_CTRL_ACK) > + ccw->bits |= CCW_WAIT4END; > } > } > } > diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c > index e5ea2b1..4062812 100644 > --- a/drivers/mmc/host/mxs-mmc.c > +++ b/drivers/mmc/host/mxs-mmc.c > @@ -305,7 +305,7 @@ static irqreturn_t mxs_mmc_irq_handler(int irq, void *dev_id) > } > > static struct dma_async_tx_descriptor *mxs_mmc_prep_dma( > - struct mxs_mmc_host *host, unsigned int append) > + struct mxs_mmc_host *host, unsigned long flags) > { > struct dma_async_tx_descriptor *desc; > struct mmc_data *data = host->data; > @@ -325,7 +325,7 @@ static struct dma_async_tx_descriptor *mxs_mmc_prep_dma( > } > > desc = host->dmach->device->device_prep_slave_sg(host->dmach, > - sgl, sg_len, host->slave_dirn, append); > + sgl, sg_len, host->slave_dirn, flags); > if (desc) { > desc->callback = mxs_mmc_dma_irq_callback; > desc->callback_param = host; > @@ -358,7 +358,7 @@ static void mxs_mmc_bc(struct mxs_mmc_host *host) > host->ssp_pio_words[2] = cmd1; > host->dma_dir = DMA_NONE; > host->slave_dirn = DMA_TRANS_NONE; > - desc = mxs_mmc_prep_dma(host, 0); > + desc = mxs_mmc_prep_dma(host, DMA_CTRL_ACK); > if (!desc) > goto out; > > @@ -398,7 +398,7 @@ static void mxs_mmc_ac(struct mxs_mmc_host *host) > host->ssp_pio_words[2] = cmd1; > host->dma_dir = DMA_NONE; > host->slave_dirn = DMA_TRANS_NONE; > - desc = mxs_mmc_prep_dma(host, 0); > + desc = mxs_mmc_prep_dma(host, DMA_CTRL_ACK); > if (!desc) > goto out; > > @@ -526,7 +526,7 @@ static void mxs_mmc_adtc(struct mxs_mmc_host *host) > host->data = data; > host->dma_dir = dma_data_dir; > host->slave_dirn = slave_dirn; > - desc = mxs_mmc_prep_dma(host, 1); > + desc = mxs_mmc_prep_dma(host, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); > if (!desc) > goto out; > > diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c > index cbcf022..420ca08 100644 > --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c > +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c > @@ -850,7 +850,9 @@ int gpmi_send_command(struct gpmi_nand_data *this) > sg_init_one(sgl, this->cmd_buffer, this->command_length); > dma_map_sg(this->dev, sgl, 1, DMA_TO_DEVICE); > desc = channel->device->device_prep_slave_sg(channel, > - sgl, 1, DMA_MEM_TO_DEV, 1); > + sgl, 1, DMA_MEM_TO_DEV, > + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); > + > if (!desc) { > pr_err("step 2 error\n"); > return -1; > @@ -892,7 +894,8 @@ int gpmi_send_data(struct gpmi_nand_data *this) > /* [2] send DMA request */ > prepare_data_dma(this, DMA_TO_DEVICE); > desc = channel->device->device_prep_slave_sg(channel, &this->data_sgl, > - 1, DMA_MEM_TO_DEV, 1); > + 1, DMA_MEM_TO_DEV, > + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); > if (!desc) { > pr_err("step 2 error\n"); > return -1; > @@ -928,7 +931,8 @@ int gpmi_read_data(struct gpmi_nand_data *this) > /* [2] : send DMA request */ > prepare_data_dma(this, DMA_FROM_DEVICE); > desc = channel->device->device_prep_slave_sg(channel, &this->data_sgl, > - 1, DMA_DEV_TO_MEM, 1); > + 1, DMA_DEV_TO_MEM, > + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); > if (!desc) { > pr_err("step 2 error\n"); > return -1; > @@ -975,7 +979,8 @@ int gpmi_send_page(struct gpmi_nand_data *this, > > desc = channel->device->device_prep_slave_sg(channel, > (struct scatterlist *)pio, > - ARRAY_SIZE(pio), DMA_TRANS_NONE, 0); > + ARRAY_SIZE(pio), DMA_TRANS_NONE, > + DMA_CTRL_ACK); > if (!desc) { > pr_err("step 2 error\n"); > return -1; > @@ -1039,7 +1044,8 @@ int gpmi_read_page(struct gpmi_nand_data *this, > pio[5] = auxiliary; > desc = channel->device->device_prep_slave_sg(channel, > (struct scatterlist *)pio, > - ARRAY_SIZE(pio), DMA_TRANS_NONE, 1); > + ARRAY_SIZE(pio), DMA_TRANS_NONE, > + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); > if (!desc) { > pr_err("step 2 error\n"); > return -1; > @@ -1059,7 +1065,8 @@ int gpmi_read_page(struct gpmi_nand_data *this, > pio[2] = 0; /* Set GPMI_HW_GPMI_ECCCTRL, disable the BCH. */ > desc = channel->device->device_prep_slave_sg(channel, > (struct scatterlist *)pio, 3, I have the mainline code show above line as (struct scatterlist *)pio, 2, That's why I think you got a wrong base. But I tested it with manually applying it. So other than the base issue, Acked-by: Shawn Guo <shawn.guo(a)linaro.org> Regards, Shawn > - DMA_TRANS_NONE, 1); > + DMA_TRANS_NONE, > + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); > if (!desc) { > pr_err("step 3 error\n"); > return -1; > -- > 1.7.0.4 > >

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