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staging: panel: fix interruptible_sleep_on race 

interruptible_sleep_on is racy and going away. This replaces the one
caller in the panel driver with the appropriate wait_event_interruptible
variant.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: devel@driverdev.osuosl.org
Cc: Willy Tarreau <willy@meta-x.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2014-01-02 13:07:35 +01:00 committed by Greg Kroah-Hartman
parent baeae584db
commit 310df69c26
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/panel/panel.c
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@ -1590,8 +1590,8 @@ static ssize_t keypad_read(struct file *file,
if (file->f_flags & O_NONBLOCK)
return -EAGAIN;
interruptible_sleep_on(&keypad_read_wait);
if (signal_pending(current))
if (wait_event_interruptible(keypad_read_wait,
keypad_buflen != 0))
return -EINTR;
}