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authorHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2008-10-03 15:23:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-03 18:22:18 -0700
commit7fe7b2f4ec14d6517078c5bc32b04301b468041c (patch)
treeded474f209ad27a57bef37c7064985b5a422c1f9
parent09b05f5ee04cd2e2af3384d50646f53c76712f10 (diff)
downloadlinux-stericsson-7fe7b2f4ec14d6517078c5bc32b04301b468041c.tar.gz
dw_dmac: fix copy/paste bug in tasklet
The tasklet checks RAW.BLOCK twice, and does not check RAW.XFER. This is obviously wrong, and could theoretically cause the driver to hang. Reported-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/dma/dw_dmac.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 94df91771243..0778d99aea7c 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -364,7 +364,7 @@ static void dw_dma_tasklet(unsigned long data)
int i;
status_block = dma_readl(dw, RAW.BLOCK);
- status_xfer = dma_readl(dw, RAW.BLOCK);
+ status_xfer = dma_readl(dw, RAW.XFER);
status_err = dma_readl(dw, RAW.ERROR);
dev_vdbg(dw->dma.dev, "tasklet: status_block=%x status_err=%x\n",