[alsa-devel] [PATCH] hda: warn on spurious response

To help disclose hardware bugs.

Signed-off-by: Wu Fengguang fengguang.wu@intel.com --- sound/pci/hda/hda_intel.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)

--- sound-2.6.orig/sound/pci/hda/hda_intel.c +++ sound-2.6/sound/pci/hda/hda_intel.c @@ -639,7 +639,11 @@ static void azx_update_rirb(struct azx * chip->rirb.res[addr] = res; smp_wmb(); chip->rirb.cmds[addr]--; - } + } else + snd_printk(KERN_ERR SFX "spurious response %#x:%#x, " + "last cmd=%#08x\n", + res, res_ex, + chip->last_cmd[addr]); } }