mtd: r852: Fix device_create_file() usage

device_create_file() can fail, therefore we have to
handle this case and abort.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c
index baea83f4dea8..77e96d2df96c 100644
--- a/drivers/mtd/nand/r852.c
+++ b/drivers/mtd/nand/r852.c
@@ -653,11 +653,15 @@ static int r852_register_nand_device(struct r852_device *dev)
         if (sm_register_device(dev->mtd, dev->sm))
                 goto error2;
 
-        if (device_create_file(&dev->mtd->dev, &dev_attr_media_type))
+        if (device_create_file(&dev->mtd->dev, &dev_attr_media_type)) {
                 message("can't create media type sysfs attribute");
+                goto error3;
+        }
 
         dev->card_registred = 1;
         return 0;
+error3:
+        nand_release(dev->mtd);
 error2:
         kfree(dev->mtd);
 error1: