A lot of code for SB drivers is in a legacy style with assignment in if condition. This also made harder to catch some bugs (e.g. the commit 1c98f574403d "ALSA: emu8000: Fix a use after free in snd_emu8000_create_mixer").
This patch fixes the coding style. All are rather simple conversions and there should be no functional changes. (The changes in snd_emu8000_new() for hw->res_port1, 2 and 3 are slightly different from the older ones, but this shouldn't matter much in practice.)
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/isa/sb/emu8000.c | 17 ++++++---- sound/isa/sb/emu8000_patch.c | 3 +- sound/isa/sb/emu8000_pcm.c | 6 ++-- sound/isa/sb/sb16.c | 65 +++++++++++++++++++++--------------- sound/isa/sb/sb16_csp.c | 14 +++++--- sound/isa/sb/sb16_main.c | 6 ++-- sound/isa/sb/sb8.c | 38 +++++++++++---------- sound/isa/sb/sb8_main.c | 3 +- sound/isa/sb/sb8_midi.c | 3 +- sound/isa/sb/sb_common.c | 9 +++-- sound/isa/sb/sb_mixer.c | 55 ++++++++++++++++-------------- 11 files changed, 130 insertions(+), 89 deletions(-)
diff --git a/sound/isa/sb/emu8000.c b/sound/isa/sb/emu8000.c index 1c90421a88dc..896a862a9f9c 100644 --- a/sound/isa/sb/emu8000.c +++ b/sound/isa/sb/emu8000.c @@ -1029,7 +1029,9 @@ snd_emu8000_create_mixer(struct snd_card *card, struct snd_emu8000 *emu)
memset(emu->controls, 0, sizeof(emu->controls)); for (i = 0; i < EMU8000_NUM_CONTROLS; i++) { - if ((err = snd_ctl_add(card, emu->controls[i] = snd_ctl_new1(mixer_defs[i], emu))) < 0) { + emu->controls[i] = snd_ctl_new1(mixer_defs[i], emu); + err = snd_ctl_add(card, emu->controls[i]); + if (err < 0) { emu->controls[i] = NULL; goto __error; } @@ -1095,9 +1097,10 @@ snd_emu8000_new(struct snd_card *card, int index, long port, int seq_ports, hw->port1 = port; hw->port2 = port + 0x400; hw->port3 = port + 0x800; - if (!(hw->res_port1 = request_region(hw->port1, 4, "Emu8000-1")) || - !(hw->res_port2 = request_region(hw->port2, 4, "Emu8000-2")) || - !(hw->res_port3 = request_region(hw->port3, 4, "Emu8000-3"))) { + hw->res_port1 = request_region(hw->port1, 4, "Emu8000-1"); + hw->res_port2 = request_region(hw->port2, 4, "Emu8000-2"); + hw->res_port3 = request_region(hw->port3, 4, "Emu8000-3"); + if (!hw->res_port1 || !hw->res_port2 || !hw->res_port3) { snd_printk(KERN_ERR "sbawe: can't grab ports 0x%lx, 0x%lx, 0x%lx\n", hw->port1, hw->port2, hw->port3); snd_emu8000_free(hw); return -EBUSY; @@ -1118,12 +1121,14 @@ snd_emu8000_new(struct snd_card *card, int index, long port, int seq_ports, }
snd_emu8000_init_hw(hw); - if ((err = snd_emu8000_create_mixer(card, hw)) < 0) { + err = snd_emu8000_create_mixer(card, hw); + if (err < 0) { snd_emu8000_free(hw); return err; } - if ((err = snd_device_new(card, SNDRV_DEV_CODEC, hw, &ops)) < 0) { + err = snd_device_new(card, SNDRV_DEV_CODEC, hw, &ops); + if (err < 0) { snd_emu8000_free(hw); return err; } diff --git a/sound/isa/sb/emu8000_patch.c b/sound/isa/sb/emu8000_patch.c index 0cb94cafb4c9..8c1e7f2bfc34 100644 --- a/sound/isa/sb/emu8000_patch.c +++ b/sound/isa/sb/emu8000_patch.c @@ -191,7 +191,8 @@ snd_emu8000_sample_new(struct snd_emux *rec, struct snd_sf_sample *sp, sp->v.truesize = truesize * 2; /* in bytes */
snd_emux_terminate_all(emu->emu); - if ((rc = snd_emu8000_open_dma(emu, EMU8000_RAM_WRITE)) != 0) + rc = snd_emu8000_open_dma(emu, EMU8000_RAM_WRITE); + if (rc) return rc;
/* Set the address to start writing at */ diff --git a/sound/isa/sb/emu8000_pcm.c b/sound/isa/sb/emu8000_pcm.c index 8e8257c574b0..f8d90a1e989b 100644 --- a/sound/isa/sb/emu8000_pcm.c +++ b/sound/isa/sb/emu8000_pcm.c @@ -626,7 +626,8 @@ static int emu8k_pcm_prepare(struct snd_pcm_substream *subs) int err, i, ch;
snd_emux_terminate_all(rec->emu->emu); - if ((err = emu8k_open_dram_for_pcm(rec->emu, rec->voices)) != 0) + err = emu8k_open_dram_for_pcm(rec->emu, rec->voices); + if (err) return err; rec->dram_opened = 1;
@@ -682,7 +683,8 @@ int snd_emu8000_pcm_new(struct snd_card *card, struct snd_emu8000 *emu, int inde struct snd_pcm *pcm; int err;
- if ((err = snd_pcm_new(card, "Emu8000 PCM", index, 1, 0, &pcm)) < 0) + err = snd_pcm_new(card, "Emu8000 PCM", index, 1, 0, &pcm); + if (err < 0) return err; pcm->private_data = emu; pcm->private_free = snd_emu8000_pcm_free; diff --git a/sound/isa/sb/sb16.c b/sound/isa/sb/sb16.c index 63ef960abd25..d0f797c02841 100644 --- a/sound/isa/sb/sb16.c +++ b/sound/isa/sb/sb16.c @@ -332,14 +332,9 @@ static int snd_sb16_probe(struct snd_card *card, int dev) xdma8 = dma8[dev]; xdma16 = dma16[dev];
- if ((err = snd_sbdsp_create(card, - port[dev], - xirq, - snd_sb16dsp_interrupt, - xdma8, - xdma16, - SB_HW_AUTO, - &chip)) < 0) + err = snd_sbdsp_create(card, port[dev], xirq, snd_sb16dsp_interrupt, + xdma8, xdma16, SB_HW_AUTO, &chip); + if (err < 0) return err;
acard->chip = chip; @@ -348,10 +343,14 @@ static int snd_sb16_probe(struct snd_card *card, int dev) return -ENODEV; } chip->mpu_port = mpu_port[dev]; - if (! is_isapnp_selected(dev) && (err = snd_sb16dsp_configure(chip)) < 0) - return err; + if (!is_isapnp_selected(dev)) { + err = snd_sb16dsp_configure(chip); + if (err < 0) + return err; + }
- if ((err = snd_sb16dsp_pcm(chip, 0)) < 0) + err = snd_sb16dsp_pcm(chip, 0); + if (err < 0) return err;
strcpy(card->driver, @@ -371,10 +370,11 @@ static int snd_sb16_probe(struct snd_card *card, int dev) xdma8 >= 0 ? "&" : "", xdma16);
if (chip->mpu_port > 0 && chip->mpu_port != SNDRV_AUTO_PORT) { - if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_SB, - chip->mpu_port, - MPU401_INFO_IRQ_HOOK, -1, - &chip->rmidi)) < 0) + err = snd_mpu401_uart_new(card, 0, MPU401_HW_SB, + chip->mpu_port, + MPU401_INFO_IRQ_HOOK, -1, + &chip->rmidi); + if (err < 0) return err; chip->rmidi_callback = snd_mpu401_uart_interrupt; } @@ -397,12 +397,14 @@ static int snd_sb16_probe(struct snd_card *card, int dev) #else int seqdev = 1; #endif - if ((err = snd_opl3_hwdep_new(opl3, 0, seqdev, &synth)) < 0) + err = snd_opl3_hwdep_new(opl3, 0, seqdev, &synth); + if (err < 0) return err; } }
- if ((err = snd_sbmixer_new(chip)) < 0) + err = snd_sbmixer_new(chip); + if (err < 0) return err;
#ifdef CONFIG_SND_SB16_CSP @@ -419,8 +421,9 @@ static int snd_sb16_probe(struct snd_card *card, int dev) #endif #ifdef SNDRV_SBAWE_EMU8000 if (awe_port[dev] > 0) { - if ((err = snd_emu8000_new(card, 1, awe_port[dev], - seq_ports[dev], NULL)) < 0) { + err = snd_emu8000_new(card, 1, awe_port[dev], + seq_ports[dev], NULL); + if (err < 0) { snd_printk(KERN_ERR PFX "fatal error - EMU-8000 synthesizer not detected at 0x%lx\n", awe_port[dev]);
return err; @@ -435,7 +438,8 @@ static int snd_sb16_probe(struct snd_card *card, int dev) (mic_agc[dev] ? 0x00 : 0x01)); spin_unlock_irqrestore(&chip->mixer_lock, flags);
- if ((err = snd_card_register(card)) < 0) + err = snd_card_register(card); + if (err < 0) return err;
return 0; @@ -484,7 +488,8 @@ static int snd_sb16_isa_probe1(int dev, struct device *pdev) awe_port[dev] = port[dev] + 0x400; #endif
- if ((err = snd_sb16_probe(card, dev)) < 0) { + err = snd_sb16_probe(card, dev); + if (err < 0) { snd_card_free(card); return err; } @@ -506,19 +511,22 @@ static int snd_sb16_isa_probe(struct device *pdev, unsigned int dev) static const int possible_dmas16[] = {5, 6, 7, -1};
if (irq[dev] == SNDRV_AUTO_IRQ) { - if ((irq[dev] = snd_legacy_find_free_irq(possible_irqs)) < 0) { + irq[dev] = snd_legacy_find_free_irq(possible_irqs); + if (irq[dev] < 0) { snd_printk(KERN_ERR PFX "unable to find a free IRQ\n"); return -EBUSY; } } if (dma8[dev] == SNDRV_AUTO_DMA) { - if ((dma8[dev] = snd_legacy_find_free_dma(possible_dmas8)) < 0) { + dma8[dev] = snd_legacy_find_free_dma(possible_dmas8); + if (dma8[dev] < 0) { snd_printk(KERN_ERR PFX "unable to find a free 8-bit DMA\n"); return -EBUSY; } } if (dma16[dev] == SNDRV_AUTO_DMA) { - if ((dma16[dev] = snd_legacy_find_free_dma(possible_dmas16)) < 0) { + dma16[dev] = snd_legacy_find_free_dma(possible_dmas16); + if (dma16[dev] < 0) { snd_printk(KERN_ERR PFX "unable to find a free 16-bit DMA\n"); return -EBUSY; } @@ -591,8 +599,13 @@ static int snd_sb16_pnp_detect(struct pnp_card_link *pcard, res = snd_sb16_card_new(&pcard->card->dev, dev, &card); if (res < 0) return res; - if ((res = snd_card_sb16_pnp(dev, card->private_data, pcard, pid)) < 0 || - (res = snd_sb16_probe(card, dev)) < 0) { + res = snd_card_sb16_pnp(dev, card->private_data, pcard, pid); + if (res < 0) { + snd_card_free(card); + return res; + } + res = snd_sb16_probe(card, dev); + if (res < 0) { snd_card_free(card); return res; } diff --git a/sound/isa/sb/sb16_csp.c b/sound/isa/sb/sb16_csp.c index 4789345a8fdd..d6ce6b16421c 100644 --- a/sound/isa/sb/sb16_csp.c +++ b/sound/isa/sb/sb16_csp.c @@ -112,10 +112,12 @@ int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep) if (csp_detect(chip, &version)) return -ENODEV;
- if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0) + err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw); + if (err < 0) return err;
- if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) { + p = kzalloc(sizeof(*p), GFP_KERNEL); + if (!p) { snd_device_free(chip->card, hw); return -ENOMEM; } @@ -1045,11 +1047,15 @@ static int snd_sb_qsound_build(struct snd_sb_csp * p)
spin_lock_init(&p->q_lock);
- if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0) { + p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p); + err = snd_ctl_add(card, p->qsound_switch); + if (err < 0) { p->qsound_switch = NULL; goto __error; } - if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0) { + p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p); + err = snd_ctl_add(card, p->qsound_space); + if (err < 0) { p->qsound_space = NULL; goto __error; } diff --git a/sound/isa/sb/sb16_main.c b/sound/isa/sb/sb16_main.c index 38dc1fde25f3..8945ee194ab6 100644 --- a/sound/isa/sb/sb16_main.c +++ b/sound/isa/sb/sb16_main.c @@ -703,7 +703,8 @@ static int snd_sb16_dma_control_put(struct snd_kcontrol *kcontrol, struct snd_ct unsigned char nval, oval; int change; - if ((nval = ucontrol->value.enumerated.item[0]) > 2) + nval = ucontrol->value.enumerated.item[0]; + if (nval > 2) return -EINVAL; spin_lock_irqsave(&chip->reg_lock, flags); oval = snd_sb16_get_dma_mode(chip); @@ -836,7 +837,8 @@ int snd_sb16dsp_pcm(struct snd_sb *chip, int device) struct snd_pcm *pcm; int err;
- if ((err = snd_pcm_new(card, "SB16 DSP", device, 1, 1, &pcm)) < 0) + err = snd_pcm_new(card, "SB16 DSP", device, 1, 1, &pcm); + if (err < 0) return err; sprintf(pcm->name, "DSP v%i.%i", chip->version >> 8, chip->version & 0xff); pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; diff --git a/sound/isa/sb/sb8.c b/sound/isa/sb/sb8.c index 6c9d534ce8b6..de68ac5df35b 100644 --- a/sound/isa/sb/sb8.c +++ b/sound/isa/sb/sb8.c @@ -101,12 +101,10 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev) }
if (port[dev] != SNDRV_AUTO_PORT) { - if ((err = snd_sbdsp_create(card, port[dev], irq[dev], - snd_sb8_interrupt, - dma8[dev], - -1, - SB_HW_AUTO, - &chip)) < 0) + err = snd_sbdsp_create(card, port[dev], irq[dev], + snd_sb8_interrupt, dma8[dev], + -1, SB_HW_AUTO, &chip); + if (err < 0) goto _err; } else { /* auto-probe legacy ports */ @@ -145,32 +143,35 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev) goto _err; }
- if ((err = snd_sb8dsp_pcm(chip, 0)) < 0) + err = snd_sb8dsp_pcm(chip, 0); + if (err < 0) goto _err;
- if ((err = snd_sbmixer_new(chip)) < 0) + err = snd_sbmixer_new(chip); + if (err < 0) goto _err;
if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) { - if ((err = snd_opl3_create(card, chip->port + 8, 0, - OPL3_HW_AUTO, 1, - &opl3)) < 0) { + err = snd_opl3_create(card, chip->port + 8, 0, + OPL3_HW_AUTO, 1, &opl3); + if (err < 0) snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8); - } } else { - if ((err = snd_opl3_create(card, chip->port, chip->port + 2, - OPL3_HW_AUTO, 1, - &opl3)) < 0) { + err = snd_opl3_create(card, chip->port, chip->port + 2, + OPL3_HW_AUTO, 1, &opl3); + if (err < 0) { snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n", chip->port, chip->port + 2); } } if (err >= 0) { - if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) + err = snd_opl3_hwdep_new(opl3, 0, 1, NULL); + if (err < 0) goto _err; }
- if ((err = snd_sb8dsp_midi(chip, 0)) < 0) + err = snd_sb8dsp_midi(chip, 0); + if (err < 0) goto _err;
strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8"); @@ -180,7 +181,8 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev) chip->port, irq[dev], dma8[dev]);
- if ((err = snd_card_register(card)) < 0) + err = snd_card_register(card); + if (err < 0) goto _err;
dev_set_drvdata(pdev, card); diff --git a/sound/isa/sb/sb8_main.c b/sound/isa/sb/sb8_main.c index 8d01692c4f2a..2ed176a5a574 100644 --- a/sound/isa/sb/sb8_main.c +++ b/sound/isa/sb/sb8_main.c @@ -567,7 +567,8 @@ int snd_sb8dsp_pcm(struct snd_sb *chip, int device) int err; size_t max_prealloc = 64 * 1024;
- if ((err = snd_pcm_new(card, "SB8 DSP", device, 1, 1, &pcm)) < 0) + err = snd_pcm_new(card, "SB8 DSP", device, 1, 1, &pcm); + if (err < 0) return err; sprintf(pcm->name, "DSP v%i.%i", chip->version >> 8, chip->version & 0xff); pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX; diff --git a/sound/isa/sb/sb8_midi.c b/sound/isa/sb/sb8_midi.c index 8c01460539ed..618366d5d984 100644 --- a/sound/isa/sb/sb8_midi.c +++ b/sound/isa/sb/sb8_midi.c @@ -251,7 +251,8 @@ int snd_sb8dsp_midi(struct snd_sb *chip, int device) struct snd_rawmidi *rmidi; int err;
- if ((err = snd_rawmidi_new(chip->card, "SB8 MIDI", device, 1, 1, &rmidi)) < 0) + err = snd_rawmidi_new(chip->card, "SB8 MIDI", device, 1, 1, &rmidi); + if (err < 0) return err; strcpy(rmidi->name, "SB8 MIDI"); snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_sb8dsp_midi_output); diff --git a/sound/isa/sb/sb_common.c b/sound/isa/sb/sb_common.c index 61ea4078aa95..57121218ed24 100644 --- a/sound/isa/sb/sb_common.c +++ b/sound/isa/sb/sb_common.c @@ -238,7 +238,8 @@ int snd_sbdsp_create(struct snd_card *card, if (hardware == SB_HW_ALS4000) goto __skip_allocation; - if ((chip->res_port = request_region(port, 16, "SoundBlaster")) == NULL) { + chip->res_port = request_region(port, 16, "SoundBlaster"); + if (!chip->res_port) { snd_printk(KERN_ERR "sb: can't grab port 0x%lx\n", port); snd_sbdsp_free(chip); return -EBUSY; @@ -267,11 +268,13 @@ int snd_sbdsp_create(struct snd_card *card, __skip_allocation: chip->card = card; chip->hardware = hardware; - if ((err = snd_sbdsp_probe(chip)) < 0) { + err = snd_sbdsp_probe(chip); + if (err < 0) { snd_sbdsp_free(chip); return err; } - if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); + if (err < 0) { snd_sbdsp_free(chip); return err; } diff --git a/sound/isa/sb/sb_mixer.c b/sound/isa/sb/sb_mixer.c index 5de5506e7e60..fffd681e5bf7 100644 --- a/sound/isa/sb/sb_mixer.c +++ b/sound/isa/sb/sb_mixer.c @@ -485,7 +485,8 @@ int snd_sbmixer_add_ctl(struct snd_sb *chip, const char *name, int index, int ty strscpy(ctl->id.name, name, sizeof(ctl->id.name)); ctl->id.index = index; ctl->private_value = value; - if ((err = snd_ctl_add(chip->card, ctl)) < 0) + err = snd_ctl_add(chip->card, ctl); + if (err < 0) return err; return 0; } @@ -736,33 +737,36 @@ int snd_sbmixer_new(struct snd_sb *chip) return 0; /* no mixer chip on SB1.x */ case SB_HW_20: case SB_HW_201: - if ((err = snd_sbmixer_init(chip, - snd_sb20_controls, - ARRAY_SIZE(snd_sb20_controls), - snd_sb20_init_values, - ARRAY_SIZE(snd_sb20_init_values), - "CTL1335")) < 0) + err = snd_sbmixer_init(chip, + snd_sb20_controls, + ARRAY_SIZE(snd_sb20_controls), + snd_sb20_init_values, + ARRAY_SIZE(snd_sb20_init_values), + "CTL1335"); + if (err < 0) return err; break; case SB_HW_PRO: case SB_HW_JAZZ16: - if ((err = snd_sbmixer_init(chip, - snd_sbpro_controls, - ARRAY_SIZE(snd_sbpro_controls), - snd_sbpro_init_values, - ARRAY_SIZE(snd_sbpro_init_values), - "CTL1345")) < 0) + err = snd_sbmixer_init(chip, + snd_sbpro_controls, + ARRAY_SIZE(snd_sbpro_controls), + snd_sbpro_init_values, + ARRAY_SIZE(snd_sbpro_init_values), + "CTL1345"); + if (err < 0) return err; break; case SB_HW_16: case SB_HW_ALS100: case SB_HW_CS5530: - if ((err = snd_sbmixer_init(chip, - snd_sb16_controls, - ARRAY_SIZE(snd_sb16_controls), - snd_sb16_init_values, - ARRAY_SIZE(snd_sb16_init_values), - "CTL1745")) < 0) + err = snd_sbmixer_init(chip, + snd_sb16_controls, + ARRAY_SIZE(snd_sb16_controls), + snd_sb16_init_values, + ARRAY_SIZE(snd_sb16_init_values), + "CTL1745"); + if (err < 0) return err; break; case SB_HW_ALS4000: @@ -775,12 +779,13 @@ int snd_sbmixer_new(struct snd_sb *chip) "ALS4000"); if (err < 0) return err; - if ((err = snd_sbmixer_init(chip, - snd_als4000_controls, - ARRAY_SIZE(snd_als4000_controls), - snd_als4000_init_values, - ARRAY_SIZE(snd_als4000_init_values), - "ALS4000")) < 0) + err = snd_sbmixer_init(chip, + snd_als4000_controls, + ARRAY_SIZE(snd_als4000_controls), + snd_als4000_init_values, + ARRAY_SIZE(snd_als4000_init_values), + "ALS4000"); + if (err < 0) return err; break; case SB_HW_DT019X: