Re: [PATCH][V2] pinctrl: ti-iodelay: remove redundant pin < 0 check on unsigned int

From: Nishanth Menon
Date: Sat Jan 14 2017 - 11:49:15 EST


On 01/13/2017 03:06 PM, Colin King wrote:
From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

pin is an unsigned int and therefore can never be < 0 so
this check is redundant. Remove the check and the associated
dev_err error message.

Fixes CoverityScan CID#1396438 ("Unsigned compared against 0")

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/pinctrl/ti/pinctrl-ti-iodelay.c | 6 ------
1 file changed, 6 deletions(-)

diff --git a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
index 3b86d3d..a345166 100644
--- a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
+++ b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
@@ -665,12 +665,6 @@ static void ti_iodelay_pin_dbg_show(struct pinctrl_dev *pctldev,
r = iod->reg_data;

offset = ti_iodelay_pin_to_offset(iod, pin);
- if (pin < 0) {
- dev_err(iod->dev, "invalid pin offset for pin%i\n", pin);
-
- return;
- }
-
pd = &iod->pa[pin];
cfg = pd->drv_data;



Acked-by: Nishanth Menon <nm@xxxxxx>

--
Regards,
Nishanth Menon