linux-kernel - [Patch Resend] infiniband:memory leak in get

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Date:	Mon, 16 Jun 2014 13:06:21 -0400
From:	Nicholas Krause <xerofoify@...il.com>
To:	swise@...lsio.com
Cc:	roland@...nel.org, sean.hefty@...el.com, hal.rosenstock@...il.com,
	linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [Patch Resend] infiniband:memory leak in get_skb function in file cm.c

diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index f9477e2..2d56983 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -340,15 +340,13 @@ static int status2errno(int status)
  */
 static struct sk_buff *get_skb(struct sk_buff *skb, int len, gfp_t gfp)
 {
 if (skb && !skb_is_nonlinear(skb) && !skb_cloned(skb)) {
                skb_trim(skb, 0);
                skb_get(skb);
                skb_reset_transport_header(skb);
        } else {
+if (!skb)
+	skb_kfree(skb);
+	/*NULL is ignored */
                skb = alloc_skb(len, gfp);
        }
        t4_set_arp_err_handler(skb, NULL, NULL);

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