From: Chris Ye <chris.ye@xxxxxxxxx>
nvdimm_clear_badblocks_region() validates badblock clearing requests
against the span of the region, however it compares the inclusive
badblock request range to the exclusive region range. Fix up the
off-by-one error.
Fixes: 23f498448362 ("libnvdimm: rework region badblocks clearing")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Chris Ye <chris.ye@xxxxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
---
drivers/nvdimm/bus.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index 7b0d1443217a..5db16857b80e 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -182,8 +182,8 @@ static int nvdimm_clear_badblocks_region(struct device *dev, void *data)
ndr_end = nd_region->ndr_start + nd_region->ndr_size - 1;
/* make sure we are in the region */
- if (ctx->phys < nd_region->ndr_start
- || (ctx->phys + ctx->cleared) > ndr_end)
+ if (ctx->phys < nd_region->ndr_start ||
+ (ctx->phys + ctx->cleared - 1) > ndr_end)
return 0;
sector = (ctx->phys - nd_region->ndr_start) / 512;
