[PATCH] nvme: Fix missing error code in nvme_configure_directives()

[Jiapeng Chong]

The error code is missing in this code scenario, add the error code
'-EINVAL' to the return value 'ret'.

Eliminate the follow smatch warning:

drivers/nvme/host/core.c:780 nvme_configure_directives() warn: missing
error code 'ret'.

Reported-by: Abaci Robot <abaci at linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong at linux.alibaba.com>
---
 drivers/nvme/host/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 79005ea1a33e..53b37f333170 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -777,6 +777,7 @@ static int nvme_configure_directives(struct nvme_ctrl *ctrl)
 	if (ctrl->nssa < BLK_MAX_WRITE_HINTS - 1) {
 		dev_info(ctrl->device, "too few streams (%u) available\n",
 					ctrl->nssa);
+		ret = -EINVAL;
 		goto out_disable_stream;
 	}
 
-- 
2.20.1.7.g153144c