diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index d00dea0eb7f9..eb88c528e120 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -799,7 +799,12 @@ static int azx_corb_send_cmd(struct hda_bus *bus, u32 val) spin_lock_irq(&chip->reg_lock); /* add command to corb */ - wp = azx_readb(chip, CORBWP); + wp = azx_readw(chip, CORBWP); + if (wp == 0xffff) { + /* something wrong, controller likely turned to D3 */ + spin_unlock_irq(&chip->reg_lock); + return -1; + } wp++; wp %= ICH6_MAX_CORB_ENTRIES; @@ -821,7 +826,12 @@ static void azx_update_rirb(struct azx *chip) unsigned int addr; u32 res, res_ex; - wp = azx_readb(chip, RIRBWP); + wp = azx_readw(chip, RIRBWP); + if (wp == 0xffff) { + /* something wrong, controller likely turned to D3 */ + return; + } + if (wp == chip->rirb.wp) return; chip->rirb.wp = wp; |