touchscreen: fix invalid return value

Change-Id: Ib8ed2eae31293181b6be2aa6161944f919a48be4
Signed-off-by: Taeyoung Kim <ty317.kim@samsung.com>

diff --git a/hw/touchscreen/touchscreen.c b/hw/touchscreen/touchscreen.c
index b25ada5..39ad64f 100644 (file)
--- a/hw/touchscreen/touchscreen.c
+++ b/hw/touchscreen/touchscreen.c
@@ -47,7 +47,7 @@ static int touchscreen_probe(void)
 
        d = opendir(INPUT_PATH);
        if (!d)
-               return NULL;
+               return -ENOTSUP;
 
        while (readdir_r(d, &entry, &dir) == 0 && dir != NULL) {
                if (dir->d_name[0] == '.')