ISA WaveFront driver code contains lots of assignments in if condition, which is a bad coding style that may confuse readers and occasionally lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/isa/wavefront/wavefront.c | 6 ++- sound/isa/wavefront/wavefront_midi.c | 20 ++++++---- sound/isa/wavefront/wavefront_synth.c | 56 ++++++++++++++++----------- 3 files changed, 50 insertions(+), 32 deletions(-)
diff --git a/sound/isa/wavefront/wavefront.c b/sound/isa/wavefront/wavefront.c index a4437971df2f..dfdeaf7b6bf4 100644 --- a/sound/isa/wavefront/wavefront.c +++ b/sound/isa/wavefront/wavefront.c @@ -555,7 +555,8 @@ static int snd_wavefront_isa_probe(struct device *pdev, err = snd_wavefront_card_new(pdev, dev, &card); if (err < 0) return err; - if ((err = snd_wavefront_probe(card, dev)) < 0) { + err = snd_wavefront_probe(card, dev); + if (err < 0) { snd_card_free(card); return err; } @@ -610,7 +611,8 @@ static int snd_wavefront_pnp_detect(struct pnp_card_link *pcard, } }
- if ((res = snd_wavefront_probe(card, dev)) < 0) + res = snd_wavefront_probe(card, dev); + if (res < 0) return res;
pnp_set_card_drvdata(pcard, card); diff --git a/sound/isa/wavefront/wavefront_midi.c b/sound/isa/wavefront/wavefront_midi.c index a337a86f7a65..72e775ac7ad7 100644 --- a/sound/isa/wavefront/wavefront_midi.c +++ b/sound/isa/wavefront/wavefront_midi.c @@ -239,7 +239,8 @@ static int snd_wavefront_midi_input_open(struct snd_rawmidi_substream *substream
mpu = *((snd_wavefront_mpu_id *) substream->rmidi->private_data);
- if ((midi = get_wavefront_midi (substream)) == NULL) + midi = get_wavefront_midi(substream); + if (!midi) return -EIO;
spin_lock_irqsave (&midi->open, flags); @@ -263,7 +264,8 @@ static int snd_wavefront_midi_output_open(struct snd_rawmidi_substream *substrea
mpu = *((snd_wavefront_mpu_id *) substream->rmidi->private_data);
- if ((midi = get_wavefront_midi (substream)) == NULL) + midi = get_wavefront_midi(substream); + if (!midi) return -EIO;
spin_lock_irqsave (&midi->open, flags); @@ -287,7 +289,8 @@ static int snd_wavefront_midi_input_close(struct snd_rawmidi_substream *substrea
mpu = *((snd_wavefront_mpu_id *) substream->rmidi->private_data);
- if ((midi = get_wavefront_midi (substream)) == NULL) + midi = get_wavefront_midi(substream); + if (!midi) return -EIO;
spin_lock_irqsave (&midi->open, flags); @@ -310,7 +313,8 @@ static int snd_wavefront_midi_output_close(struct snd_rawmidi_substream *substre
mpu = *((snd_wavefront_mpu_id *) substream->rmidi->private_data);
- if ((midi = get_wavefront_midi (substream)) == NULL) + midi = get_wavefront_midi(substream); + if (!midi) return -EIO;
spin_lock_irqsave (&midi->open, flags); @@ -333,9 +337,9 @@ static void snd_wavefront_midi_input_trigger(struct snd_rawmidi_substream *subst
mpu = *((snd_wavefront_mpu_id *) substream->rmidi->private_data);
- if ((midi = get_wavefront_midi (substream)) == NULL) { + midi = get_wavefront_midi(substream); + if (!midi) return; - }
spin_lock_irqsave (&midi->virtual, flags); if (up) { @@ -372,9 +376,9 @@ static void snd_wavefront_midi_output_trigger(struct snd_rawmidi_substream *subs
mpu = *((snd_wavefront_mpu_id *) substream->rmidi->private_data);
- if ((midi = get_wavefront_midi (substream)) == NULL) { + midi = get_wavefront_midi(substream); + if (!midi) return; - }
spin_lock_irqsave (&midi->virtual, flags); if (up) { diff --git a/sound/isa/wavefront/wavefront_synth.c b/sound/isa/wavefront/wavefront_synth.c index d6420d224d09..69cbc79fbb71 100644 --- a/sound/isa/wavefront/wavefront_synth.c +++ b/sound/isa/wavefront/wavefront_synth.c @@ -339,7 +339,8 @@ snd_wavefront_cmd (snd_wavefront_t *dev, int c; struct wavefront_command *wfcmd;
- if ((wfcmd = wavefront_get_command (cmd)) == NULL) { + wfcmd = wavefront_get_command(cmd); + if (!wfcmd) { snd_printk ("command 0x%x not supported.\n", cmd); return 1; @@ -391,7 +392,8 @@ snd_wavefront_cmd (snd_wavefront_t *dev,
for (i = 0; i < wfcmd->read_cnt; i++) {
- if ((c = wavefront_read (dev)) == -1) { + c = wavefront_read(dev); + if (c == -1) { DPRINT (WF_DEBUG_IO, "bad read for byte " "%d of 0x%x [%s].\n", i, cmd, wfcmd->action); @@ -401,7 +403,8 @@ snd_wavefront_cmd (snd_wavefront_t *dev, /* Now handle errors. Lots of special cases here */ if (c == 0xff) { - if ((c = wavefront_read (dev)) == -1) { + c = wavefront_read(dev); + if (c == -1) { DPRINT (WF_DEBUG_IO, "bad read for " "error byte at " "read byte %d " @@ -459,9 +462,9 @@ snd_wavefront_cmd (snd_wavefront_t *dev, of the standard value. */ - if ((ack = wavefront_read (dev)) == 0) { + ack = wavefront_read(dev); + if (ack == 0) ack = WF_ACK; - } if (ack != WF_ACK) { if (ack == -1) { @@ -475,7 +478,8 @@ snd_wavefront_cmd (snd_wavefront_t *dev,
if (ack == 0xff) { /* explicit error */ - if ((err = wavefront_read (dev)) == -1) { + err = wavefront_read(dev); + if (err == -1) { DPRINT (WF_DEBUG_DATA, "cannot read err " "for 0x%x [%s].\n", @@ -603,9 +607,9 @@ wavefront_delete_sample (snd_wavefront_t *dev, int sample_num) wbuf[0] = sample_num & 0x7f; wbuf[1] = sample_num >> 7;
- if ((x = snd_wavefront_cmd (dev, WFC_DELETE_SAMPLE, NULL, wbuf)) == 0) { + x = snd_wavefront_cmd(dev, WFC_DELETE_SAMPLE, NULL, wbuf); + if (!x) dev->sample_status[sample_num] = WF_ST_EMPTY; - }
return x; } @@ -691,8 +695,9 @@ wavefront_get_patch_status (snd_wavefront_t *dev) patchnum[0] = i & 0x7f; patchnum[1] = i >> 7;
- if ((x = snd_wavefront_cmd (dev, WFC_UPLOAD_PATCH, patchbuf, - patchnum)) == 0) { + x = snd_wavefront_cmd(dev, WFC_UPLOAD_PATCH, patchbuf, + patchnum); + if (x == 0) {
dev->patch_status[i] |= WF_SLOT_FILLED; p = (wavefront_patch *) patchbuf; @@ -738,8 +743,9 @@ wavefront_get_program_status (snd_wavefront_t *dev) for (i = 0; i < WF_MAX_PROGRAM; i++) { prognum = i;
- if ((x = snd_wavefront_cmd (dev, WFC_UPLOAD_PROGRAM, progbuf, - &prognum)) == 0) { + x = snd_wavefront_cmd(dev, WFC_UPLOAD_PROGRAM, progbuf, + &prognum); + if (x == 0) {
dev->prog_status[i] |= WF_SLOT_USED;
@@ -894,9 +900,9 @@ wavefront_send_sample (snd_wavefront_t *dev, if (header->number == WAVEFRONT_FIND_FREE_SAMPLE_SLOT) { int x;
- if ((x = wavefront_find_free_sample (dev)) < 0) { + x = wavefront_find_free_sample(dev); + if (x < 0) return -ENOMEM; - } snd_printk ("unspecified sample => %d\n", x); header->number = x; } @@ -1137,7 +1143,8 @@ wavefront_send_sample (snd_wavefront_t *dev, nothing to do with DMA at all. */ - if ((dma_ack = wavefront_read (dev)) != WF_DMA_ACK) { + dma_ack = wavefront_read(dev); + if (dma_ack != WF_DMA_ACK) { if (dma_ack == -1) { snd_printk ("upload sample " "DMA ack timeout\n"); @@ -1282,14 +1289,16 @@ wavefront_fetch_multisample (snd_wavefront_t *dev, char d[2]; int val; - if ((val = wavefront_read (dev)) == -1) { + val = wavefront_read(dev); + if (val == -1) { snd_printk ("upload multisample failed " "during sample loop.\n"); return -EIO; } d[0] = val;
- if ((val = wavefront_read (dev)) == -1) { + val = wavefront_read(dev); + if (val == -1) { snd_printk ("upload multisample failed " "during sample loop.\n"); return -EIO; @@ -1910,7 +1919,8 @@ wavefront_reset_to_cleanliness (snd_wavefront_t *dev) goto gone_bad; } - if ((hwv[0] = wavefront_read (dev)) == -1) { + hwv[0] = wavefront_read(dev); + if (hwv[0] == -1) { snd_printk ("board not responding correctly.\n"); goto gone_bad; } @@ -1921,7 +1931,8 @@ wavefront_reset_to_cleanliness (snd_wavefront_t *dev) and tell us about it either way. */ - if ((hwv[0] = wavefront_read (dev)) == -1) { + hwv[0] = wavefront_read(dev); + if (hwv[0] == -1) { snd_printk ("on-board RAM test failed " "(bad error code).\n"); } else { @@ -1934,7 +1945,8 @@ wavefront_reset_to_cleanliness (snd_wavefront_t *dev)
/* We're OK, just get the next byte of the HW version response */
- if ((hwv[1] = wavefront_read (dev)) == -1) { + hwv[1] = wavefront_read(dev); + if (hwv[1] == -1) { snd_printk ("incorrect h/w response.\n"); goto gone_bad; } @@ -2079,9 +2091,9 @@ wavefront_do_reset (snd_wavefront_t *dev) about it. */ - if ((dev->freemem = wavefront_freemem (dev)) < 0) { + dev->freemem = wavefront_freemem(dev); + if (dev->freemem < 0) goto gone_bad; - } snd_printk ("available DRAM %dk\n", dev->freemem / 1024);