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-rw-r--r--sound/pci/hda/hda_intel.c14
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;