ndctl/scrub: Stop translating return values

BZ: 

Brew: 

commit c52109355b715bbe21e284090435bee7563863cc

Author: Dan Williams <dan.j.williams@intel.com>

Date:   Wed May 26 16:33:04 2021 -0700

    ndctl/scrub: Stop translating return values

    In preparation for triggering a poll loop within ndctl_bus_start_scrub(),

    stop translating return values into -EOPNOTSUPP.

    Link: https://lore.kernel.org/r/162207198482.3715490.5994844104395495686.stgit@dwillia2-desk3.amr.corp.intel.com

    Signed-off-by: Dan Williams <dan.j.williams@intel.com>

    Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>

diff --git a/ndctl/lib/libndctl.c b/ndctl/lib/libndctl.c

index aa36a3c..e5641fe 100644

--- a/ndctl/lib/libndctl.c

+++ b/ndctl/lib/libndctl.c

@@ -1354,14 +1354,8 @@ static int __ndctl_bus_get_scrub_state(struct ndctl_bus *bus,

 NDCTL_EXPORT int ndctl_bus_start_scrub(struct ndctl_bus *bus)

 {

 	struct ndctl_ctx *ctx = ndctl_bus_get_ctx(bus);

-	int rc;

-	rc = sysfs_write_attr(ctx, bus->scrub_path, "1\n");

-	if (rc == -EBUSY)

-		return rc;

-	else if (rc < 0)

-		return -EOPNOTSUPP;

-	return 0;

+	return sysfs_write_attr(ctx, bus->scrub_path, "1\n");

 }

 NDCTL_EXPORT int ndctl_bus_get_scrub_state(struct ndctl_bus *bus)