From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
This patch looks like it should be in the 3.9-stable tree, should we apply
it?
------------------
From: "Dan Carpenter <dan.carpenter@xxxxxxxxxx>"
commit ad3e2751e7c546ae678be1f8d86e898506b42cef upstream
These tests are off by one. If "mw" is equal to NTB_NUM_MW then we
would go beyond the end of the ndev->mw[] array.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Jon Mason <jon.mason@xxxxxxxxx>
Signed-off-by: Jonghwan Choi <jhbird.choi@xxxxxxxxxxx>
---
drivers/ntb/ntb_hw.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index f802e7c..195cc51 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -345,7 +345,7 @@ int ntb_read_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 *val)
*/
void __iomem *ntb_get_mw_vbase(struct ntb_device *ndev, unsigned int mw)
{
- if (mw > NTB_NUM_MW)
+ if (mw >= NTB_NUM_MW)
return NULL;
return ndev->mw[mw].vbase;
@@ -362,7 +362,7 @@ void __iomem *ntb_get_mw_vbase(struct ntb_device *ndev, unsigned int mw)
*/
resource_size_t ntb_get_mw_size(struct ntb_device *ndev, unsigned int mw)
{
- if (mw > NTB_NUM_MW)
+ if (mw >= NTB_NUM_MW)
return 0;
return ndev->mw[mw].bar_sz;
@@ -380,7 +380,7 @@ resource_size_t ntb_get_mw_size(struct ntb_device *ndev, unsigned int mw)
*/
void ntb_set_mw_addr(struct ntb_device *ndev, unsigned int mw, u64 addr)
{
- if (mw > NTB_NUM_MW)
+ if (mw >= NTB_NUM_MW)
return;
dev_dbg(&ndev->pdev->dev, "Writing addr %Lx to BAR %d\n", addr,
--
1.8.1.2
--
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