Commit efc7ae3f authored by Angus Chen's avatar Angus Chen Committed by Greg Kroah-Hartman
Browse files

uio: Fix return value of poll 



The return type of __poll_t can't be negative,
-EIO will be translate to __poll_t,and will return to caller.

Fixes: beafc54c ("UIO: Add the User IO core code")
Signed-off-by: default avatarAngus Chen <angus.chen@jaguarmicro.com>
Link: https://lore.kernel.org/r/20241126124259.1367-1-angus.chen@jaguarmicro.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 54932d72

drivers/uio/uio.c

+1 −1
Original line number Diff line number Diff line
@@ -565,7 +565,7 @@ static __poll_t uio_poll(struct file *filep, poll_table *wait) 


	mutex_lock(&idev->info_lock);

	if (!idev->info || !idev->info->irq)

		ret = -EIO;

		ret = EPOLLERR;

	mutex_unlock(&idev->info_lock);



	if (ret)