crypto: chcr - Fixes Unchecked dereference inside function

Fixes 324429d74127, Unchecked dereference inside function.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jitendra Lulla <JLULLA@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
index d24b7ce..0ae1b09 100644 (file)
--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -439,8 +439,9 @@ write_sg_to_skb(struct sk_buff *skb, unsigned int *frags,
        skb->len += count;
        skb->data_len += count;
        skb->truesize += count;
+
        while (count > 0) {
-               if (sg && (!(sg->length)))
+               if (!sg || (!(sg->length)))
                        break;
                spage = sg_page(sg);
                get_page(spage);