From: Luiz Augusto von Dentz luiz.von.dentz@intel.com
stable inclusion from stable-v5.10.134 commit a8feae8bd22757637921dfbfb74731dac31da461 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5ZVR7
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit 266191aa8d14b84958aaeb5e96ee4e97839e3d87 upstream.
Passing NULL to PTR_ERR will result in 0 (success), also since the likes of bt_skb_sendmsg does never return NULL it is safe to replace the instances of IS_ERR_OR_NULL with IS_ERR when checking its return.
Reported-by: Dan Carpenter dan.carpenter@oracle.com Tested-by: Tedd Ho-Jeong An tedd.an@intel.com Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Marcel Holtmann marcel@holtmann.org Cc: Harshit Mogalapalli harshit.m.mogalapalli@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Reviewed-by: Wei Li liwei391@huawei.com --- include/net/bluetooth/bluetooth.h | 2 +- net/bluetooth/rfcomm/sock.c | 2 +- net/bluetooth/sco.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 3275d5737285..b85e6d9ba39f 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -474,7 +474,7 @@ static inline struct sk_buff *bt_skb_sendmmsg(struct sock *sk, struct sk_buff *tmp;
tmp = bt_skb_sendmsg(sk, msg, len, mtu, headroom, tailroom); - if (IS_ERR_OR_NULL(tmp)) { + if (IS_ERR(tmp)) { kfree_skb(skb); return tmp; } diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index 97f10f05ae19..4cf1fa9900ca 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -583,7 +583,7 @@ static int rfcomm_sock_sendmsg(struct socket *sock, struct msghdr *msg,
skb = bt_skb_sendmmsg(sk, msg, len, d->mtu, RFCOMM_SKB_HEAD_RESERVE, RFCOMM_SKB_TAIL_RESERVE); - if (IS_ERR_OR_NULL(skb)) + if (IS_ERR(skb)) return PTR_ERR(skb);
sent = rfcomm_dlc_send(d, skb); diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index 8d0b7e7d4ed7..17e377d9be30 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -732,7 +732,7 @@ static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg, return -EOPNOTSUPP;
skb = bt_skb_sendmsg(sk, msg, len, len, 0, 0); - if (IS_ERR_OR_NULL(skb)) + if (IS_ERR(skb)) return PTR_ERR(skb);
lock_sock(sk);