Since t4_alloc_mem can be failed in memory pressure,
if not properly handled, NULL dereference could be happened.
Signed-off-by: Insu Yun <wuni...@gmail.com>
---
drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c
b/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c
index c308429..11dd91e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c
@@ -295,6 +295,10 @@ struct clip_tbl *t4_init_clip_tbl(unsigned int clipt_start,
INIT_LIST_HEAD(&ctbl->hash_list[i]);
cl_list = t4_alloc_mem(clipt_size*sizeof(struct clip_entry));
+ if (!cl_list) {
+ t4_free_mem(ctbl);
+ return NULL;
+ }
ctbl->cl_list = (void *)cl_list;
for (i = 0; i < clipt_size; i++) {
--
1.9.1
--
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