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authorRoel Kluin <roel.kluin@gmail.com>2009-05-22 12:46:52 +0400
committerLi Yang <leoli@freescale.com>2009-05-22 12:46:52 +0400
commitf47edc6dab11801c2e97088ba7bbce042ded867c (patch)
tree99de3f248d23b997813ba0da149359601ed281e1 /drivers/dma
parent0899d6349c60e4021224b51c8c97f49b829dfefd (diff)
downloadlinux-f47edc6dab11801c2e97088ba7bbce042ded867c.tar.xz
fsldma: fix check on potential fdev->chan[] overflow
Fix the check of potential array overflow when using corrupted channel device tree nodes. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Li Yang <leoli@freescale.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/fsldma.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index da8a8ed9e411..391b1bd7098b 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -830,7 +830,7 @@ static int __devinit fsl_dma_chan_probe(struct fsl_dma_device *fdev,
new_fsl_chan->reg.end - new_fsl_chan->reg.start + 1);
new_fsl_chan->id = ((new_fsl_chan->reg.start - 0x100) & 0xfff) >> 7;
- if (new_fsl_chan->id > FSL_DMA_MAX_CHANS_PER_DEVICE) {
+ if (new_fsl_chan->id >= FSL_DMA_MAX_CHANS_PER_DEVICE) {
dev_err(fdev->dev, "There is no %d channel!\n",
new_fsl_chan->id);
err = -EINVAL;