linux-kernel - [PATCH] ipmi: fix ipmb

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 20 Nov 2019 01:07:41 +0100
From:   Luc Van Oostenryck <luc.vanoostenryck@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>,
        Corey Minyard <minyard@....org>,
        openipmi-developer@...ts.sourceforge.net,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH] ipmi: fix ipmb_poll()'s return type

ipmb_poll() is defined as returning 'unsigned int' but the
.poll method is declared as returning '__poll_t', a bitwise type.

Fix this by using the proper return type and using the EPOLL
constants instead of the POLL ones, as required for __poll_t.

CC: Corey Minyard <minyard@....org>
CC: openipmi-developer@...ts.sourceforge.net
CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@...il.com>
---
 drivers/char/ipmi/ipmb_dev_int.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/char/ipmi/ipmb_dev_int.c b/drivers/char/ipmi/ipmb_dev_int.c
index 285e0b8f9a97..2ea51147c3e8 100644
--- a/drivers/char/ipmi/ipmb_dev_int.c
+++ b/drivers/char/ipmi/ipmb_dev_int.c
@@ -154,16 +154,16 @@ static ssize_t ipmb_write(struct file *file, const char __user *buf,
 	return ret ? : count;
 }
 
-static unsigned int ipmb_poll(struct file *file, poll_table *wait)
+static __poll_t ipmb_poll(struct file *file, poll_table *wait)
 {
 	struct ipmb_dev *ipmb_dev = to_ipmb_dev(file);
-	unsigned int mask = POLLOUT;
+	__poll_t mask = EPOLLOUT;
 
 	mutex_lock(&ipmb_dev->file_mutex);
 	poll_wait(file, &ipmb_dev->wait_queue, wait);
 
 	if (atomic_read(&ipmb_dev->request_queue_len))
-		mask |= POLLIN;
+		mask |= EPOLLIN;
 	mutex_unlock(&ipmb_dev->file_mutex);
 
 	return mask;
-- 
2.24.0