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Date: Tue, 29 Dec 2015 17:20:11 -0500 From: Insu Yun <wuninsu@...il.com> To: hariprasad@...lsio.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Cc: taesoo@...ech.edu, yeongjin.jang@...ech.edu, insu@...ech.edu, changwoo@...ech.edu, Insu Yun <wuninsu@...il.com> Subject: [PATCH] cxgb4: correctly handling failed allocation Since t4_alloc_mem can be failed in memory pressure, if not properly handled, NULL dereference could be happened. Signed-off-by: Insu Yun <wuninsu@...il.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 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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