video: fbdev: mmp: replace usage of found with dedicated list iterator variable

To move the list iterator variable into the list_for_each_entry_*()
macro in the future it should be avoided to use the list iterator
variable after the loop body.

To *never* use the list iterator variable after the loop it was
concluded to use a separate iterator variable instead of a
found boolean [1].

This removes the need to use a found variable and simply checking if
the variable was set, can determine if the break/goto was hit.

Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@mail.gmail.com/ [1]
Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>

drivers/video/fbdev/mmp/core.c

@@ -127,19 +127,18 @@ EXPORT_SYMBOL_GPL(mmp_unregister_panel);
  */
 struct mmp_path *mmp_get_path(const char *name)
 {
-	struct mmp_path *path;
-	int found = 0;
+	struct mmp_path *path = NULL, *iter;
 
 	mutex_lock(&disp_lock);
-	list_for_each_entry(path, &path_list, node) {
-		if (!strcmp(name, path->name)) {
-			found = 1;
+	list_for_each_entry(iter, &path_list, node) {
+		if (!strcmp(name, iter->name)) {
+			path = iter;
 			break;
 		}
 	}
 	mutex_unlock(&disp_lock);
 
-	return found ? path : NULL;
+	return path;
 }
 EXPORT_SYMBOL_GPL(mmp_get_path);