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ALSA: ctxfi: Fix the incorrect check of dma_set_mask() call 

In the commit [15c75b09f8d1: ALSA: ctxfi: Fallback DMA mask to 32bit],
I forgot to put "!" at dam_set_mask() call check in cthw20k1.c (while
cthw20k2.c is OK).  This patch fixes that obvious bug.

(As a side note: although the original commit was completely wrong,
 it's still working for most of machines, as it sets to 32bit DMA mask
 in the end.  So the bug severity is low.)

Fixes: 15c75b09f8 ("ALSA: ctxfi: Fallback DMA mask to 32bit")
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2017-03-20 10:08:19 +01:00
parent 97da3854c5
commit f363a06642
1 changed files with 1 additions and 1 deletions
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2
sound/pci/ctxfi/cthw20k1.c
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@ -1905,7 +1905,7 @@ static int hw_card_start(struct hw *hw)
return err;
/* Set DMA transfer mask */
if (dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
} else {
dma_set_mask(&pci->dev, DMA_BIT_MASK(32));