diff options
Diffstat (limited to 'drivers/mtd/mtdconcat.c')
| -rw-r--r-- | drivers/mtd/mtdconcat.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c index 7e075621bbf4..4567bc373780 100644 --- a/drivers/mtd/mtdconcat.c +++ b/drivers/mtd/mtdconcat.c | |||
| @@ -540,10 +540,12 @@ static int concat_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) | |||
| 540 | else | 540 | else |
| 541 | size = len; | 541 | size = len; |
| 542 | 542 | ||
| 543 | err = subdev->lock(subdev, ofs, size); | 543 | if (subdev->lock) { |
| 544 | 544 | err = subdev->lock(subdev, ofs, size); | |
| 545 | if (err) | 545 | if (err) |
| 546 | break; | 546 | break; |
| 547 | } else | ||
| 548 | err = -EOPNOTSUPP; | ||
| 547 | 549 | ||
| 548 | len -= size; | 550 | len -= size; |
| 549 | if (len == 0) | 551 | if (len == 0) |
| @@ -578,10 +580,12 @@ static int concat_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) | |||
| 578 | else | 580 | else |
| 579 | size = len; | 581 | size = len; |
| 580 | 582 | ||
| 581 | err = subdev->unlock(subdev, ofs, size); | 583 | if (subdev->unlock) { |
| 582 | 584 | err = subdev->unlock(subdev, ofs, size); | |
| 583 | if (err) | 585 | if (err) |
| 584 | break; | 586 | break; |
| 587 | } else | ||
| 588 | err = -EOPNOTSUPP; | ||
| 585 | 589 | ||
| 586 | len -= size; | 590 | len -= size; |
| 587 | if (len == 0) | 591 | if (len == 0) |