core: ofnode: Fix mem leak in error path

A newly created property is currently not freed if a name could not be
allocated. This patch fixes the resulting memory leak in the error
patch.

Reported-by: Coverity (CID: 184085)
Fixes: e369e58d ("core: Add functions to set properties in live-tree")
Signed-off-by: NMario Six <mario.six@gdsys.cc>

drivers/core/ofnode.c

@@ -831,8 +831,10 @@ int ofnode_write_prop(ofnode node, const char *propname, int len,
 		return -ENOMEM;
 
 	new->name = strdup(propname);
-	if (!new->name)
+	if (!new->name) {
+		free(new);
 		return -ENOMEM;
+	}
 
 	new->value = (void *)value;
 	new->length = len;