video/fbdev: fix defio's fsync

fb_deferred_io_fsync() returns the value of schedule_delayed_work() as
an error code, but schedule_delayed_work() does not return an error. It
returns true/false depending on whether the work was already queued.

Fix this by ignoring the return value of schedule_delayed_work().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: stable@vger.kernel.org

diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c
index 900aa4e..d6cab1f 100644 (file)
--- a/drivers/video/fbdev/core/fb_defio.c
+++ b/drivers/video/fbdev/core/fb_defio.c
@@ -83,9 +83,10 @@ int fb_deferred_io_fsync(struct file *file, loff_t start, loff_t end, int datasy
        cancel_delayed_work_sync(&info->deferred_work);
 
        /* Run it immediately */
-       err = schedule_delayed_work(&info->deferred_work, 0);
+       schedule_delayed_work(&info->deferred_work, 0);
        mutex_unlock(&inode->i_mutex);
-       return err;
+
+       return 0;
 }
 EXPORT_SYMBOL_GPL(fb_deferred_io_fsync);