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scsi: target: cxgbit: Fix cxgbit_fw4_ack()

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Use the pointer 'p' after having tested that pointer instead of before.

Fixes: 5cadafb236 ("target/cxgbit: Fix endianness annotations")
Cc: Varun Prakash <varun@chelsio.com>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191023202150.22173-1-bvanassche@acm.org
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Bart Van Assche 2019-10-23 13:21:50 -07:00 committed by Martin K. Petersen
parent 8d8b83f5be
commit fc5b220b2d
1 changed files with 2 additions and 1 deletions
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3
drivers/target/iscsi/cxgbit/cxgbit_cm.c
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@ -1829,7 +1829,7 @@ static void cxgbit_fw4_ack(struct cxgbit_sock *csk, struct sk_buff *skb)
while (credits) {
struct sk_buff *p = cxgbit_sock_peek_wr(csk);
const u32 csum = (__force u32)p->csum;
u32 csum;
if (unlikely(!p)) {
pr_err("csk 0x%p,%u, cr %u,%u+%u, empty.\n",
@ -1838,6 +1838,7 @@ static void cxgbit_fw4_ack(struct cxgbit_sock *csk, struct sk_buff *skb)
break;
}
csum = (__force u32)p->csum;
if (unlikely(credits < csum)) {
pr_warn("csk 0x%p,%u, cr %u,%u+%u, < %u.\n",
csk, csk->tid,