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

commit f363a06642f28caaa78cb6446bbad90c73fe183c upstream.

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: 15c75b09f8d1 ("ALSA: ctxfi: Fallback DMA mask to 32bit")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/sound/pci/ctxfi/cthw20k1.c b/sound/pci/ctxfi/cthw20k1.c
index 1885bfe6ff7b6f9d7d322566630883e4780ac871..abac728a9460abb0c0faa80504c85ad9f57b68d5 100644 (file)
--- a/sound/pci/ctxfi/cthw20k1.c
+++ b/sound/pci/ctxfi/cthw20k1.c
@@ -1904,7 +1904,7 @@ 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));