Input: handlers - handle errors from input_open_device()

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 8a4cce5c78..6cff8096d5 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -130,6 +130,7 @@ static int evdev_open(struct inode *inode, struct file *file)
         struct evdev_client *client;
         struct evdev *evdev;
         int i = iminor(inode) - EVDEV_MINOR_BASE;
+        int error;
 
         if (i >= EVDEV_MINORS)
                 return -ENODEV;
@@ -146,8 +147,14 @@ static int evdev_open(struct inode *inode, struct file *file)
         client->evdev = evdev;
         list_add_tail(&client->node, &evdev->client_list);
 
-        if (!evdev->open++ && evdev->exist)
-                input_open_device(&evdev->handle);
+        if (!evdev->open++ && evdev->exist) {
+                error = input_open_device(&evdev->handle);
+                if (error) {
+                        list_del(&client->node);
+                        kfree(client);
+                        return error;
+                }
+        }
 
         file->private_data = client;
         return 0;