Merge tag 'fuse-update-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mszered...

[platform/kernel/linux-rpi.git] / drivers / dax / super.c

diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index e84070b..edc279b 100644 (file)
--- 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);