4.19-stable review patch. If anyone has any objections, please let me know.
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From: Luiz Augusto von Dentz luiz.von.dentz@intel.com
commit 6e62ebfb49eb65bdcbfc5797db55e0ce7f79c3dd upstream.
This fixes the following build regression:
drivers-bluetooth-btintel.c-btintel_read_version()-warn: passing-zero-to-PTR_ERR
Fixes: b79e04091010 ("Bluetooth: btintel: Fix null ptr deref in btintel_read_version") Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/bluetooth/btintel.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -355,13 +355,13 @@ int btintel_read_version(struct hci_dev struct sk_buff *skb;
skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_CMD_TIMEOUT); - if (IS_ERR_OR_NULL(skb)) { + if (IS_ERR(skb)) { bt_dev_err(hdev, "Reading Intel version information failed (%ld)", PTR_ERR(skb)); return PTR_ERR(skb); }
- if (skb->len != sizeof(*ver)) { + if (!skb || skb->len != sizeof(*ver)) { bt_dev_err(hdev, "Intel version event size mismatch"); kfree_skb(skb); return -EILSEQ;