From c4685849b4d725ab80cd29f5e09f5f128b4724b5 Mon Sep 17 00:00:00 2001 From: Ondrej Zary <linux@rainbow-software.org> Date: Wed, 4 Aug 2010 21:56:44 +0200 Subject: 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> --- sound/pci/als4000.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sound/pci/als4000.c') 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); } -- cgit v1.2.3