Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/md/dm-mpath.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 6395347..01e5f8e 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -732,6 +732,9 @@ static int parse_hw_handler(struct dm_arg_set *as, struct multipath *m)
return 0;
m->hw_handler_name = kstrdup(dm_shift_arg(as), GFP_KERNEL);
+ if (!m->hw_handler_name)
+ return -ENOMEM;
+
if (!try_then_request_module(scsi_dh_handler_exist(m->hw_handler_name),
"scsi_dh_%s", m->hw_handler_name)) {
ti->error = "unknown hardware handler type";
--
1.9.1
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