On Tue, 3 Aug 2021 01:28:06 +0100
Salah Triki <salah.triki@xxxxxxxxx> wrote:
> Replace conditional statement with min() in order to make code cleaner. Issue
> found by coccinelle.
> +++ b/drivers/usb/class/usblp.c
> request, !!dir, recip, value, index, len, retval);
> - return retval < 0 ? retval : 0;
> + return min(retval, 0);
> }
I'm very much against this change. The function min() is there
for numeric values. But here we have a situation where we
do one thing if there was an error, and another thing if
there was no error.
This sort of abuse is exactly why blindly clicking heels
whenever a tool tells you is not optimal.
If the objective is to shut the tool up, please consider
the following instead:
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index 9596e4279294..bbcbcf199fa9 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -264,7 +264,9 @@ static int usblp_ctrl_msg(struct usblp *usblp, int request, int type, int dir, i
dev_dbg(&usblp->intf->dev,
"usblp_control_msg: rq: 0x%02x dir: %d recip: %d value: %d idx: %d len: %#x result: %d\n",
request, !!dir, recip, value, index, len, retval);
- return retval < 0 ? retval : 0;
+ if (retval < 0)
+ return retval;
+ return 0;
}
#define usblp_read_status(usblp, status)\
-- Pete
