[PATCH v2] hv: utils: enhance code for human read

From: JesÃs Castro
Date: Mon Mar 11 2019 - 20:30:00 EST


The if/else block from hvt_op_open function can be written
as a switch/case block, and the bool issue_reset variable
is avoided.

No functional change made.

Suggested-by: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: JesÃs Castro <x51v4n@xxxxxxxxx>
---

v2: Refactoring hvt_op_open function with a switch/case block.
Change subject from: fix coding style


drivers/hv/hv_utils_transport.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/hv/hv_utils_transport.c b/drivers/hv/hv_utils_transport.c
index 832777527936..6b27dd7be9bb 100644
--- a/drivers/hv/hv_utils_transport.c
+++ b/drivers/hv/hv_utils_transport.c
@@ -125,35 +125,35 @@ static int hvt_op_open(struct inode *inode, struct file *file)
{
struct hvutil_transport *hvt;
int ret = 0;
- bool issue_reset = false;

hvt = container_of(file->f_op, struct hvutil_transport, fops);

mutex_lock(&hvt->lock);

- if (hvt->mode == HVUTIL_TRANSPORT_DESTROY) {
- ret = -EBADF;
- } else if (hvt->mode == HVUTIL_TRANSPORT_INIT) {
+ switch (hvt->mode) {
+ case HVUTIL_TRANSPORT_INIT:
/*
* Switching to CHARDEV mode. We switch bach to INIT when
* device gets released.
*/
hvt->mode = HVUTIL_TRANSPORT_CHARDEV;
- }
- else if (hvt->mode == HVUTIL_TRANSPORT_NETLINK) {
+ break;
+ case HVUTIL_TRANSPORT_NETLINK:
/*
* We're switching from netlink communication to using char
* device. Issue the reset first.
*/
- issue_reset = true;
hvt->mode = HVUTIL_TRANSPORT_CHARDEV;
- } else {
+ hvt_reset(hvt);
+ break;
+ case HVUTIL_TRANSPORT_DESTROY:
+ ret = -EBADF;
+ break;
+ default:
ret = -EBUSY;
+ break;
}

- if (issue_reset)
- hvt_reset(hvt);
-
mutex_unlock(&hvt->lock);

return ret;
--
2.21.0