[PATCH] drivers/video: Replace custom macro with isdigit()

Replace the custom CHAR_IS_NUM() macro with isdigit() from <linux/ctype.h>

Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Acked-by: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/video/pm3fb.c b/drivers/video/pm3fb.c
index e0dad94..2e11b60 100644
--- a/drivers/video/pm3fb.c
+++ b/drivers/video/pm3fb.c
@@ -67,6 +67,7 @@
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <linux/ioport.h>
+#include <linux/ctype.h>
 
 #include <video/fbcon.h>
 #include <video/fbcon-mfb.h>
@@ -2594,7 +2595,7 @@
 {
 	char *next;
 
-	if (!(CHAR_IS_NUM(options[0]))) {
+	if (!(isdigit(options[0]))) {
 		(*bn) = 0;
 		return (options);
 	}