[alsa-devel] [PATCH] hda: read CORBWP inside reg_lock

[Wu Fengguang]

This converts the last CORBWP access outside of reg_lock.

Signed-off-by: Wu Fengguang <fengguang.wu at intel.com>
---
 sound/pci/hda/hda_intel.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- sound-2.6.orig/sound/pci/hda/hda_intel.c
+++ sound-2.6/sound/pci/hda/hda_intel.c
@@ -595,15 +595,17 @@ static int azx_corb_send_cmd(struct hda_
 	unsigned int addr = azx_command_addr(val);
 	unsigned int wp;
 
+	spin_lock_irq(&chip->reg_lock);
+
 	/* add command to corb */
 	wp = azx_readb(chip, CORBWP);
 	wp++;
 	wp %= ICH6_MAX_CORB_ENTRIES;
 
-	spin_lock_irq(&chip->reg_lock);
 	chip->rirb.cmds[addr]++;
 	chip->corb.buf[wp] = cpu_to_le32(val);
 	azx_writel(chip, CORBWP, wp);
+
 	spin_unlock_irq(&chip->reg_lock);
 
 	return 0;