diff options
Diffstat (limited to 'drivers/dax/super.c')
| -rw-r--r-- | drivers/dax/super.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dax/super.c b/drivers/dax/super.c index 32642634c1bb..2378d51eb5e8 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -46,7 +46,8 @@ EXPORT_SYMBOL_GPL(dax_read_unlock); int bdev_dax_pgoff(struct block_device *bdev, sector_t sector, size_t size, pgoff_t *pgoff) { - phys_addr_t phys_off = (get_start_sect(bdev) + sector) * 512; + sector_t start_sect = bdev ? get_start_sect(bdev) : 0; + phys_addr_t phys_off = (start_sect + sector) * 512; if (pgoff) *pgoff = PHYS_PFN(phys_off); |