[PATCH][next] dax: remove redundant assignment to variable rc

[Colin Ian King]

The variable rc is being assigned an value and then is being re-assigned
a new value in the next statement. The assignment is redundant and can
be removed.

Cleans up clang scan build warning:
drivers/dax/bus.c:1207:2: warning: Value stored to 'rc' is never
read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@xxxxxxxxx>
---
 drivers/dax/bus.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index 797e1ebff299..f758afbf8f09 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -1204,7 +1204,6 @@ static ssize_t mapping_store(struct device *dev, struct device_attribute *attr,
 	if (rc)
 		return rc;
 
-	rc = -ENXIO;
 	rc = down_write_killable(&dax_region_rwsem);
 	if (rc)
 		return rc;
-- 
2.39.2