touchscreen: fix the invalid return value

Change-Id: I486d17b96cf539f78d379c048cfa4f9cd12a4370
Signed-off-by: Taeyoung Kim <ty317.kim@samsung.com>

diff --git a/hw/touchscreen/touchscreen.c b/hw/touchscreen/touchscreen.c
index b25ada5688e0be32fdedce91d91c682cd73a1b8c..1d5be64da239820c286c639082d5ca82ddc8b31e 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 -errno;
 
        while (readdir_r(d, &entry, &dir) == 0 && dir != NULL) {
                if (dir->d_name[0] == '.')