From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 17 Jul 2017 02:14:00 +0000 (-0400)
Subject: ->si_band gets POLL... bitmap stored into a user-visible long field
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=5dc533c66b131726a1a747eb3c92b20a9ede9219;p=openwrt%2Fstaging%2Fblogic.git

->si_band gets POLL... bitmap stored into a user-visible long field

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/fcntl.c b/fs/fcntl.c
index 0522e283a4f4..afe731c7a5a8 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -690,7 +690,7 @@ COMPAT_SYSCALL_DEFINE3(fcntl, unsigned int, fd, unsigned int, cmd,
 
 /* Table to convert sigio signal codes into poll band bitmaps */
 
-static const long band_table[NSIGPOLL] = {
+static const __poll_t band_table[NSIGPOLL] = {
 	POLLIN | POLLRDNORM,			/* POLL_IN */
 	POLLOUT | POLLWRNORM | POLLWRBAND,	/* POLL_OUT */
 	POLLIN | POLLRDNORM | POLLMSG,		/* POLL_MSG */
@@ -758,7 +758,7 @@ static void send_sigio_to_task(struct task_struct *p,
 			if (reason - POLL_IN >= NSIGPOLL)
 				si.si_band  = ~0L;
 			else
-				si.si_band = band_table[reason - POLL_IN];
+				si.si_band = (__force long)band_table[reason - POLL_IN];
 			si.si_fd    = fd;
 			if (!do_send_sig_info(signum, &si, p, group))
 				break;