[PATCH V2 2/2] libfc: Corrected the condition check and invalid argument passed

[Javed Hasan <jhasan@xxxxxxxxxxx>]

 -In correct condition check was leading to data corruption
  and so the invalid argument.

Fixes: 8fd9efca86d0 ("scsi: libfc: Work around -Warray-bounds warning")
Signed-off-by: Javed Hasan <jhasan@xxxxxxxxxxx>
Reviewed-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
CC: stable@xxxxxxxxxxxxxxx
---
Changes in v2:
 - Added stable@xxxxxxxxxxxxxxx in cc
---
 drivers/scsi/libfc/fc_encode.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/libfc/fc_encode.h b/drivers/scsi/libfc/fc_encode.h
index 602c97a651bc..9ea4ceadb559 100644
--- a/drivers/scsi/libfc/fc_encode.h
+++ b/drivers/scsi/libfc/fc_encode.h
@@ -166,9 +166,11 @@ static inline int fc_ct_ns_fill(struct fc_lport *lport,
 static inline void fc_ct_ms_fill_attr(struct fc_fdmi_attr_entry *entry,
 				    const char *in, size_t len)
 {
-	int copied = strscpy(entry->value, in, len);
-	if (copied > 0)
-		memset(entry->value, copied, len - copied);
+	int copied;
+
+	copied = strscpy((char *)&entry->value, in, len);
+	if (copied > 0 && (copied + 1) < len)
+		memset((entry->value + copied + 1), 0, len - copied - 1);
 }
 
 /**
-- 
2.26.2