[WATCHDOG] VFS clean-up

All watchdog device drivers are VFSs (Virtual File Systems).
We thus return a nonseekable_open(inode, file) when we open the VFS.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/char/watchdog/omap_wdt.c b/drivers/char/watchdog/omap_wdt.c
index b36fa8d..3a0e061 100644
--- a/drivers/char/watchdog/omap_wdt.c
+++ b/drivers/char/watchdog/omap_wdt.c
@@ -142,7 +142,7 @@
 
 	omap_wdt_set_timeout();
 	omap_wdt_enable();
-	return 0;
+	return nonseekable_open(inode, file);
 }
 
 static int omap_wdt_release(struct inode *inode, struct file *file)