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authorDan Carpenter <dan.carpenter@oracle.com>2013-08-28 13:48:44 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-08-28 15:46:33 -0700
commit2d17f7fb693bfb197d1e7007f2060deba78ae675 (patch)
treea802977633788b567bbf541439738c359b967480 /drivers/dma
parentff49896aa45de286f3cbfda800fc92665374546a (diff)
downloadlinux-2d17f7fb693bfb197d1e7007f2060deba78ae675.tar.bz2
dma: cppi41: off by one in desc_to_chan()
The test here should be ">=" instead of ">". The cdd->chan_busy[] array has "ALLOC_DECS_NUM" elements. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/cppi41.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 6c4e64f2f3e7..7c82b92f9b16 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -242,7 +242,7 @@ static struct cppi41_channel *desc_to_chan(struct cppi41_dd *cdd, u32 desc)
}
desc_num = (desc - cdd->descs_phys) / sizeof(struct cppi41_desc);
- BUG_ON(desc_num > ALLOC_DECS_NUM);
+ BUG_ON(desc_num >= ALLOC_DECS_NUM);
c = cdd->chan_busy[desc_num];
cdd->chan_busy[desc_num] = NULL;
return c;