[PATCH] ipmi: fix ipmb_poll()'s return type

From: Luc Van Oostenryck
Date: Tue Nov 19 2019 - 19:07:48 EST

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@xxxxxxx>
CC: openipmi-developer@xxxxxxxxxxxxxxxxxxxxx
CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
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;

poll_wait(file, &ipmb_dev->wait_queue, wait);

if (atomic_read(&ipmb_dev->request_queue_len))
- mask |= POLLIN;
+ mask |= EPOLLIN;

return mask;