Input: ati_remote2 - return the error code from sysfs channel_mask store

If the channel_mask setup fails when configuring it through sysfs,
return the error code to the caller instead of claiming success.

Signed-off-by: Ville Syrjala <syrjala@sci.fi>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index 9ccdb82d869..1de58e8a1b7 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -737,14 +737,17 @@ static ssize_t ati_remote2_store_channel_mask(struct device *dev,
 
         mutex_lock(&ati_remote2_mutex);
 
-        if (mask != ar2->channel_mask && !ati_remote2_setup(ar2, mask))
-                ar2->channel_mask = mask;
+        if (mask != ar2->channel_mask) {
+                r = ati_remote2_setup(ar2, mask);
+                if (!r)
+                        ar2->channel_mask = mask;
+        }
 
         mutex_unlock(&ati_remote2_mutex);
 
         usb_autopm_put_interface(ar2->intf[0]);
 
-        return count;
+        return r ? r : count;
 }
 
 static ssize_t ati_remote2_show_mode_mask(struct device *dev,