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| author | Takashi Iwai <tiwai@suse.de> | 2008-01-18 14:32:32 (GMT) |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-01-31 16:30:05 (GMT) |
| commit | 28a0d9df0706c523d3bb8de18892c76b78c2e428 (patch) | |
| tree | 0bc6757b150a8350a419fd6dd5b884bd53d410ee /sound | |
| parent | 7cda8ba9f4e471dfba914ecf67fd14ebffb17c16 (diff) | |
| download | linux-28a0d9df0706c523d3bb8de18892c76b78c2e428.tar.xz | |
[ALSA] hda-intel - Make azx_get_response() a bit more robust
In azx_[rirb_]get_response(), the timeout is checked at the end of the loop.
It's better to be checked just after the check of the RIRB index to avoid
a bogus error with a too long msleep().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index fe07bdf..be5cbbc 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -551,7 +551,7 @@ static unsigned int azx_rirb_get_response(struct hda_codec *codec) again: timeout = jiffies + msecs_to_jiffies(1000); - do { + for (;;) { if (chip->polling_mode) { spin_lock_irq(&chip->reg_lock); azx_update_rirb(chip); @@ -559,13 +559,15 @@ static unsigned int azx_rirb_get_response(struct hda_codec *codec) } if (!chip->rirb.cmds) return chip->rirb.res; /* the last value */ + if (time_after(jiffies, timeout)) + break; if (codec->bus->needs_damn_long_delay) msleep(2); /* temporary workaround */ else { udelay(10); cond_resched(); } - } while (time_after_eq(timeout, jiffies)); + } if (chip->msi) { snd_printk(KERN_WARNING "hda_intel: No response from codec, " |