Add unction parameter description.

Signed-off-by: Deming Wang <wangdeming@inspur.com>
---
 drivers/scsi/mpt3sas/mpt3sas_base.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 1b492e9a3e55..4a159ca26df7 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -171,10 +171,10 @@ mpt3sas_base_check_cmd_timeout(struct MPT3SAS_ADAPTER *ioc,
 
 /**
  * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug.
- * @val: ?
- * @kp: ?
+ * @val: string representation of a value
+ * @kp: object that will be set
  *
- * Return: ?
+ * Return: 0 success
  */
 static int
 _scsih_set_fwfault_debug(const char *val, const struct kernel_param *kp)
-- 
2.31.1