[SCSI] iscsi_transport: Check iscsi interface skb allocation return value

Let's not oops when we cannot allocate a skb! Add a check
for if alloc_skb fails.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 4 insertions, 6 deletions

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index caf1836bbeca..4fbd8e1a0695 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -609,12 +609,10 @@ iscsi_if_send_reply(int pid, int seq, int type, int done, int multi,
         int t = done ? NLMSG_DONE : type;
 
         skb = alloc_skb(len, GFP_ATOMIC);
-        /*
-         * FIXME:
-         * user is supposed to react on iferror == -ENOMEM;
-         * see iscsi_if_rx().
-         */
-        BUG_ON(!skb);
+        if (!skb) {
+                printk(KERN_ERR "Could not allocate skb to send reply.\n");
+                return -ENOMEM;
+        }
 
         nlh = __nlmsg_put(skb, pid, seq, t, (len - sizeof(*nlh)), 0);
         nlh->nlmsg_flags = flags;