On 06/16/2014 05:30 PM, Steve Wise wrote:
On 6/16/2014 10:25 AM, Nicholas Krause wrote:
Signed-off-by: Nicholas Krause <xerofo...@gmail.com>
---
  drivers/infiniband/hw/cxgb4/cm.c | 8 +++-----
  1 file changed, 3 insertions(+), 5 deletions(-)

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)
+            kfree_skb (skb);
          skb = alloc_skb(len, gfp);
      }
      t4_set_arp_err_handler(skb, NULL, NULL);

Can you change the comment?  This patch is now fixing a potential skb leak.
Also, kfree_sb() will ignore NULL ptrs, so we could just always call it.
> But I'd add a comment like /* NULL is ignored */.

AFAIK, checkpatch.pl will show you a message if it detects this:

if (x)
    kfree(x);

so I guess it is not really needed.

Thanks,
    Levente Kurusa.
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