From: Takashi Iwai <tiwai@suse.de>
To: alsa-devel@alsa-project.org
Cc: Greg KH <gregkh@linuxfoundation.org>, Jiri Slaby <jslaby@suse.cz>
Subject: [PATCH] ALSA: ctxfi: Fix the incorrect check of dma_set_mask() call
Date: Mon, 20 Mar 2017 10:24:17 +0100 [thread overview]
Message-ID: <20170320092417.6158-1-tiwai@suse.de> (raw)
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")
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/pci/ctxfi/cthw20k1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/pci/ctxfi/cthw20k1.c b/sound/pci/ctxfi/cthw20k1.c
index ab4cdab5cfa5..79edd88d5cd0 100644
--- a/sound/pci/ctxfi/cthw20k1.c
+++ b/sound/pci/ctxfi/cthw20k1.c
@@ -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));
--
2.11.1
reply other threads:[~2017-03-20 9:24 UTC|newest]
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