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.carpen...@oracle.com>
diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index 4c71b17..5bf54f3 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -359,7 +359,7 @@ int ntb_read_remote_spad(struct ntb_device *ndev, unsigned
int idx, u32 *val)
*/
void *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;
@@ -376,7 +376,7 @@ void *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;
@@ -394,7 +394,7 @@ 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,
--
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