drivers/leds/leds-tca6507.c: cleanup error handling in tca6507_probe()

Just a small tidy-up.

1) There is a NULL dereference if the tca allocation fails.
2) The call to cancel_work_sync() isn't needed because we haven't
   scheduled any work.
3) The call to i2c_set_clientdata() isn't needed because the core
   handles that automatically if probe() fails.
4) I added some curly braces for style reasons.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 5 deletions

diff --git a/drivers/leds/leds-tca6507.c b/drivers/leds/leds-tca6507.c
index 133f89fb7071..ec06a8101e56 100644
--- a/drivers/leds/leds-tca6507.c
+++ b/drivers/leds/leds-tca6507.c
@@ -687,10 +687,9 @@ static int __devinit tca6507_probe(struct i2c_client *client,
                         NUM_LEDS);
                 return -ENODEV;
         }
-        err = -ENOMEM;
         tca = kzalloc(sizeof(*tca), GFP_KERNEL);
         if (!tca)
-                goto exit;
+                return -ENOMEM;
 
         tca->client = client;
         INIT_WORK(&tca->work, tca6507_work);
@@ -724,11 +723,10 @@ static int __devinit tca6507_probe(struct i2c_client *client,
 
         return 0;
 exit:
-        while (i--)
+        while (i--) {
                 if (tca->leds[i].led_cdev.name)
                         led_classdev_unregister(&tca->leds[i].led_cdev);
-        cancel_work_sync(&tca->work);
-        i2c_set_clientdata(client, NULL);
+        }
         kfree(tca);
         return err;
 }