usb: gadget: gadgetfs: potential use after free in unbind()

[karo-tx-linux.git] / drivers / mtd / mtd_blkdevs.c

diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 5ad39bb5ab4c02659cacb1fdb82e8a5b30188759..5073cbc796d86c3a04c4f22d83b01c2f01b1d114 100644 (file)
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -237,13 +237,12 @@ error_put:
        return ret;
 }
 
-static int blktrans_release(struct gendisk *disk, fmode_t mode)
+static void blktrans_release(struct gendisk *disk, fmode_t mode)
 {
        struct mtd_blktrans_dev *dev = blktrans_dev_get(disk);
-       int ret = 0;
 
        if (!dev)
-               return ret;
+               return;
 
        mutex_lock(&dev->lock);
 
@@ -254,13 +253,13 @@ static int blktrans_release(struct gendisk *disk, fmode_t mode)
        module_put(dev->tr->owner);
 
        if (dev->mtd) {
-               ret = dev->tr->release ? dev->tr->release(dev) : 0;
+               if (dev->tr->release)
+                       dev->tr->release(dev);
                __put_mtd_device(dev->mtd);
        }
 unlock:
        mutex_unlock(&dev->lock);
        blktrans_dev_put(dev);
-       return ret;
 }
 
 static int blktrans_getgeo(struct block_device *bdev, struct hd_geometry *geo)