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@acm.org>
CC: openipmi-developer@lists.sourceforge.net
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Message-Id: <20191120000741.30657-1-luc.vanoostenryck@gmail.com>
Reviewed-by: Asmaa Mnebhi <asmaa@mellanox.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>

diff --git a/drivers/char/ipmi/ipmb_dev_int.c b/drivers/char/ipmi/ipmb_dev_int.c
index ae3bfba..1ff4fb1 100644 (file)
--- a/drivers/char/ipmi/ipmb_dev_int.c
+++ b/drivers/char/ipmi/ipmb_dev_int.c
@@ -151,16 +151,16 @@ 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;