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authorDivy Le Ray <divy@chelsio.com>2008-11-26 15:35:59 -0800
committerDavid S. Miller <davem@davemloft.net>2008-11-26 15:35:59 -0800
commit5256554489531f3e177e7308752d8f0681cdd5a6 (patch)
tree4ce0f2fe12ef0a9654bc939bd5b015cbfc297647 /drivers/net/cxgb3/sge.c
parent43a944f37364e22fff4cbc1e12d227b196e47612 (diff)
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cxgb3: avoid potential memory leak.
Add consistency in alloc_ring() parameter checking to avoid potential memory leaks. alloc_ring() callers are correct fo far. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/cxgb3/sge.c')
-rw-r--r--drivers/net/cxgb3/sge.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 268f158..bc6a8dc 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -549,16 +549,15 @@ static void *alloc_ring(struct pci_dev *pdev, size_t nelem, size_t elem_size,
if (!p)
return NULL;
- if (sw_size) {
+ if (sw_size && metadata) {
s = kcalloc(nelem, sw_size, GFP_KERNEL);
if (!s) {
dma_free_coherent(&pdev->dev, len, p, *phys);
return NULL;
}
- }
- if (metadata)
*(void **)metadata = s;
+ }
memset(p, 0, len);
return p;
}