video/fbdev: fix defio's fsync

commit 30ea9c5218651bc11cbdba7820be78f04e2d83bc upstream.

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>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/video/fb_defio.c b/drivers/video/fb_defio.c
index c27e153..8a3d51f 100644 (file)
--- a/drivers/video/fb_defio.c
+++ b/drivers/video/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 */
        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);
        mutex_unlock(&inode->i_mutex);

-       return err;
+
+       return 0;

 }
 EXPORT_SYMBOL_GPL(fb_deferred_io_fsync);
 
 }
 EXPORT_SYMBOL_GPL(fb_deferred_io_fsync);