[PATCH v3 20/63] um: Use enum req_op where appropriate

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Improve static type checking by using type enum req_op instead of int where
appropriate.

Cc: Richard Weinberger <richard@xxxxxx>
Cc: Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
---
 arch/um/drivers/ubd_kern.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 479b79e11442..eb2d2f0f0bcc 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -1262,7 +1262,7 @@ static void ubd_map_req(struct ubd *dev, struct io_thread_req *io_req,
 	struct req_iterator iter;
 	int i = 0;
 	unsigned long byte_offset = io_req->offset;
-	int op = req_op(req);
+	enum req_op op = req_op(req);
 
 	if (op == REQ_OP_WRITE_ZEROES || op == REQ_OP_DISCARD) {
 		io_req->io_desc[0].buffer = NULL;
@@ -1325,7 +1325,7 @@ static int ubd_submit_request(struct ubd *dev, struct request *req)
 	int segs = 0;
 	struct io_thread_req *io_req;
 	int ret;
-	int op = req_op(req);
+	enum req_op op = req_op(req);
 
 	if (op == REQ_OP_FLUSH)
 		segs = 0;



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