diff options
| -rw-r--r-- | drivers/mtd/devices/block2mtd.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 2cf0cc6a4189..a9e2d3b38aeb 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -234,6 +234,7 @@ static void block2mtd_free_device(struct block2mtd_dev *dev) /* FIXME: ensure that mtd->size % erase_size == 0 */ static struct block2mtd_dev *add_device(char *devname, int erase_size) { + const fmode_t mode = FMODE_READ | FMODE_WRITE; struct block_device *bdev; struct block2mtd_dev *dev; char *name; @@ -246,7 +247,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) return NULL; /* Get a handle on the device */ - bdev = open_bdev_exclusive(devname, FMODE_READ|FMODE_WRITE, NULL); + bdev = open_bdev_exclusive(devname, mode, dev); #ifndef MODULE if (IS_ERR(bdev)) { @@ -255,7 +256,15 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) dev_t devt = name_to_dev_t(devname); if (devt) { - bdev = open_by_devnum(devt, FMODE_WRITE | FMODE_READ); + bdev = open_by_devnum(devt, mode); + if (!IS_ERR(bdev)) { + int ret; + ret = bd_claim(bdev, dev); + if (ret) { + blkdev_put(bdev, mode); + bdev = ERR_PTR(ret); + } + } } } #endif |