diff options
| author | Takashi Iwai <tiwai@suse.de> | 2018-07-25 17:59:26 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-22 07:43:41 +0200 |
| commit | eeb2943acc746d50b5b92f5058f90a398c2589bf (patch) | |
| tree | a7f347a5279e89404b9aff1dd50b002424189a0e | |
| parent | fe4740d8be766710cbc515337648addb734adf51 (diff) | |
| download | linux-eeb2943acc746d50b5b92f5058f90a398c2589bf.tar.gz | |
ALSA: cs5535audio: Fix invalid endian conversion
commit 69756930f2de0457d51db7d505a1e4f40e9fd116 upstream.
One place in cs5535audio_build_dma_packets() does an extra conversion
via cpu_to_le32(); namely jmpprd_addr is passed to setup_prd() ops,
which writes the value via cs_writel(). That is, the callback does
the conversion by itself, and we don't need to convert beforehand.
This patch fixes that bogus conversion.
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | sound/pci/cs5535audio/cs5535audio.h | 6 | ||||
| -rw-r--r-- | sound/pci/cs5535audio/cs5535audio_pcm.c | 4 |
2 files changed, 5 insertions, 5 deletions
diff --git a/sound/pci/cs5535audio/cs5535audio.h b/sound/pci/cs5535audio/cs5535audio.h index f4fcdf93f3c8e..d84620a0c26c4 100644 --- a/sound/pci/cs5535audio/cs5535audio.h +++ b/sound/pci/cs5535audio/cs5535audio.h @@ -67,9 +67,9 @@ struct cs5535audio_dma_ops { }; struct cs5535audio_dma_desc { - u32 addr; - u16 size; - u16 ctlreserved; + __le32 addr; + __le16 size; + __le16 ctlreserved; }; struct cs5535audio_dma { diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c index ee7065f6e162b..326caec854e10 100644 --- a/sound/pci/cs5535audio/cs5535audio_pcm.c +++ b/sound/pci/cs5535audio/cs5535audio_pcm.c @@ -158,8 +158,8 @@ static int cs5535audio_build_dma_packets(struct cs5535audio *cs5535au, lastdesc->addr = cpu_to_le32((u32) dma->desc_buf.addr); lastdesc->size = 0; lastdesc->ctlreserved = cpu_to_le16(PRD_JMP); - jmpprd_addr = cpu_to_le32(lastdesc->addr + - (sizeof(struct cs5535audio_dma_desc)*periods)); + jmpprd_addr = (u32)dma->desc_buf.addr + + sizeof(struct cs5535audio_dma_desc) * periods; dma->substream = substream; dma->period_bytes = period_bytes; |