diff options
| author | Ondrej Zary <linux@rainbow-software.org> | 2010-08-04 23:56:44 +0400 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-08-05 01:18:33 +0400 |
| commit | c4685849b4d725ab80cd29f5e09f5f128b4724b5 (patch) | |
| tree | 1a4ecf520eed853e62e5ddcd5da53b667ab09729 /sound/pci/als4000.c | |
| parent | b9619230e1f55a763bc41848c1cd971a394c878c (diff) | |
| download | linux-c4685849b4d725ab80cd29f5e09f5f128b4724b5.tar.xz | |
ALSA: als4000: Fix potentially invalid DMA mode setup
My previous patch assumed that the DMA mode (represented by 3 lowest bits of
ALS4K_GCR99_DMA_EMULATION_CTRL register) is set to the default value 0. If
that's not the case, it might result in invalid mode to be set.
This patch fixes this potential problem.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/als4000.c')
| -rw-r--r-- | sound/pci/als4000.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/pci/als4000.c b/sound/pci/als4000.c index 036a9ba8e1a5..0e247cb90ecc 100644 --- a/sound/pci/als4000.c +++ b/sound/pci/als4000.c @@ -765,7 +765,7 @@ static void snd_als4000_configure(struct snd_sb *chip) snd_als4k_gcr_write(chip, i, 0); /* enable burst mode to prevent dropouts during high PCI bus usage */ snd_als4k_gcr_write(chip, ALS4K_GCR99_DMA_EMULATION_CTRL, - snd_als4k_gcr_read(chip, ALS4K_GCR99_DMA_EMULATION_CTRL) | 0x04); + (snd_als4k_gcr_read(chip, ALS4K_GCR99_DMA_EMULATION_CTRL) & ~0x07) | 0x04); spin_unlock_irq(&chip->reg_lock); } |