From 28a0d9df0706c523d3bb8de18892c76b78c2e428 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 18 Jan 2008 15:32:32 +0100 Subject: [PATCH] [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 Signed-off-by: Jaroslav Kysela --- sound/pci/hda/hda_intel.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index fe07bdff60d..be5cbbcb6ec 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, " -- 2.20.1