[PATCH] sis warning fix

drivers/video/sis/sis_main.c: In function `sisfb_compat_ioctl':
drivers/video/sis/sis_main.c:2204: warning: implicit declaration of function `lock_kernel'
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/video/sis/sis_main.c

@@ -50,6 +50,7 @@
 #include <linux/fb.h>
 #include <linux/console.h>
 #include <linux/selection.h>
+#include <linux/smp_lock.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/pci.h>