NFC: st21nfca: ERR_PTR vs NULL fix

"skb" can be NULL here but it can't be an ERR_PTR:
- IS_ERR(NULL) return false and skb migth be NULL.
- skb cannot be a ERR_PTR as nfc_hci_send_cmd_async it never using such cast.

!skb is more appropriate at those places.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/nfc/st21nfca/st21nfca_dep.c b/drivers/nfc/st21nfca/st21nfca_dep.c
index bf3132ba743c..9408122fb948 100644
--- a/drivers/nfc/st21nfca/st21nfca_dep.c
+++ b/drivers/nfc/st21nfca/st21nfca_dep.c
@@ -443,7 +443,7 @@ static void st21nfca_im_recv_atr_res_cb(void *context, struct sk_buff *skb,
         if (err != 0)
                 return;
 
-        if (IS_ERR(skb))
+        if (!skb)
                 return;
 
         switch (info->async_cb_type) {
@@ -555,7 +555,7 @@ static void st21nfca_im_recv_dep_res_cb(void *context, struct sk_buff *skb,
         if (err != 0)
                 return;
 
-        if (IS_ERR(skb))
+        if (!skb)
                 return;
 
         switch (info->async_cb_type) {