commit 8facd5fb73c6e960555e5913743dfbb6c3d984a5
author Jacob Keller <jacob.e.keller@intel.com> Tue Apr 02 13:55:40 2013 -0700
committer David S. Miller <davem@davemloft.net> Tue Apr 02 16:59:16 2013 -0400
tree 2d15a5e9bcf859b437171d17aa8996048bfee634
parent be0e2f1f7d2fb6c49ea29a4f8274b36537c34dba

net: fix smatch warnings inside datagram_poll

Commit 7d4c04fc170087119727119074e72445f2bb192b ("net: add option to enable
error queue packets waking select") has an issue due to operator precedence
causing the bit-wise OR to bind to the sock_flags call instead of the result of
the terniary conditional. This fixes the *_poll functions to work properly. The
old code results in "mask |= POLLPRI" instead of what was intended, which is to
only include POLLPRI when the socket option is enabled.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/bluetooth/af_bluetooth.c

diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 409902f..fea778e 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -423,7 +423,7 @@
 
 	if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
 		mask |= POLLERR |
-			sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0;
+			(sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0);
 
 	if (sk->sk_shutdown & RCV_SHUTDOWN)
 		mask |= POLLRDHUP | POLLIN | POLLRDNORM;

net/core/datagram.c

diff --git a/net/core/datagram.c b/net/core/datagram.c
index 36da5b6..ebba65d 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -750,7 +750,7 @@
 	/* exceptional events? */
 	if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
 		mask |= POLLERR |
-			sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0;
+			(sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0);
 
 	if (sk->sk_shutdown & RCV_SHUTDOWN)
 		mask |= POLLRDHUP | POLLIN | POLLRDNORM;

net/iucv/af_iucv.c

diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index f0550a3..7dfb9ed 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1462,7 +1462,7 @@
 
 	if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
 		mask |= POLLERR |
-			sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0;
+			(sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0);
 
 	if (sk->sk_shutdown & RCV_SHUTDOWN)
 		mask |= POLLRDHUP;

net/nfc/llcp/sock.c

diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
index 2d55e8a..6b32544 100644
--- a/net/nfc/llcp/sock.c
+++ b/net/nfc/llcp/sock.c
@@ -522,7 +522,7 @@
 
 	if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
 		mask |= POLLERR |
-			sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0;
+			(sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0);
 
 	if (!skb_queue_empty(&sk->sk_receive_queue))
 		mask |= POLLIN | POLLRDNORM;

net/unix/af_unix.c

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index fb7a63f..2e4d900 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2197,7 +2197,7 @@
 	/* exceptional events? */
 	if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
 		mask |= POLLERR |
-			sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0;
+			(sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0);
 
 	if (sk->sk_shutdown & RCV_SHUTDOWN)
 		mask |= POLLRDHUP | POLLIN | POLLRDNORM;