diff options
| -rw-r--r-- | drivers/mtd/mtd_blkdevs.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index a534e1f0c34..ca385697446 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -221,15 +221,33 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode) kref_get(&dev->ref); __module_get(dev->tr->owner); - if (dev->mtd) { - ret = dev->tr->open ? dev->tr->open(dev) : 0; - __get_mtd_device(dev->mtd); + if (!dev->mtd) + goto unlock; + + if (dev->tr->open) { + ret = dev->tr->open(dev); + if (ret) + goto error_put; } + ret = __get_mtd_device(dev->mtd); + if (ret) + goto error_release; + unlock: mutex_unlock(&dev->lock); blktrans_dev_put(dev); return ret; + +error_release: + if (dev->tr->release) + dev->tr->release(dev); +error_put: + module_put(dev->tr->owner); + kref_put(&dev->ref, blktrans_dev_release); + mutex_unlock(&dev->lock); + blktrans_dev_put(dev); + return ret; } static int blktrans_release(struct gendisk *disk, fmode_t mode) |