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-rw-r--r--sound/pci/hda/hda_intel.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index ddabc827ac44..b6e6314d0069 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -513,6 +513,7 @@ static int azx_alloc_cmd_io(struct azx *chip)
static void azx_init_cmd_io(struct azx *chip)
{
+ spin_lock_irq(&chip->reg_lock);
/* CORB set up */
chip->corb.addr = chip->rb.addr;
chip->corb.buf = (u32 *)chip->rb.area;
@@ -544,13 +545,16 @@ static void azx_init_cmd_io(struct azx *chip)
azx_writew(chip, RINTCNT, 1);
/* enable rirb dma and response irq */
azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
+ spin_unlock_irq(&chip->reg_lock);
}
static void azx_free_cmd_io(struct azx *chip)
{
+ spin_lock_irq(&chip->reg_lock);
/* disable ringbuffer DMAs */
azx_writeb(chip, RIRBCTL, 0);
azx_writeb(chip, CORBCTL, 0);
+ spin_unlock_irq(&chip->reg_lock);
}
static unsigned int azx_command_addr(u32 cmd)