[PATCH][next] Bluetooth: btrtl: fix incorrect skb allocation failure check

[Colin King]

From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Currently the check for a failed bt_skb_alloc allocation is incorrectly
checking using IS_ERR and this can lead to a null pointer dereference. Fix
this by checking for a null pointer return using the !skb idiom.

Addresses-Coverity: ("Dereference null return")
Fixes: 1996d9cad6ad ("Bluetooth: btrtl: Ask 8821C to drop old firmware")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
 drivers/bluetooth/btrtl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 0ac0f8874ef7..12099c40f8d6 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -572,7 +572,7 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
 		cmd[1] = opcode >> 8;
 
 		skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
-		if (IS_ERR(skb))
+		if (!skb)
 			goto out_free;
 
 		skb_put_data(skb, cmd, sizeof(cmd));
-- 
2.28.0