net: Use bool for return value of dev_valid_name().

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/dev.c b/net/core/dev.c
index 5ef3b65..0090809 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -848,21 +848,21 @@
  *	to allow sysfs to work.  We also disallow any kind of
  *	whitespace.
  */
-int dev_valid_name(const char *name)
+bool dev_valid_name(const char *name)
 {
 	if (*name == '\0')
-		return 0;
+		return false;
 	if (strlen(name) >= IFNAMSIZ)
-		return 0;
+		return false;
 	if (!strcmp(name, ".") || !strcmp(name, ".."))
-		return 0;
+		return false;
 
 	while (*name) {
 		if (*name == '/' || isspace(*name))
-			return 0;
+			return false;
 		name++;
 	}
-	return 1;
+	return true;
 }
 EXPORT_SYMBOL(dev_valid_name);