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pinctrl: imx: fix unsigned check if nfuncs with less than or equal zero 

The unsigned integer nfuncs is being error checked with a value less
or equal to zero; this is always false if of_get_child_count returns a
-ve for an error condition since nfuncs is not signed. Fix this by
making variables nfuncs and i signed integers.

Detected with Coccinelle:
drivers/pinctrl/freescale/pinctrl-imx.c:620:6-12: WARNING: Unsigned
expression compared with zero: nfuncs <= 0

Cc: Linus Walleij <linus.walleij@linaro.org>
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Dong Aisheng 2018-04-28 03:01:48 +08:00 committed by Linus Walleij
parent fdab33d5d2
commit 562088ee27
1 changed files with 1 additions and 1 deletions
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2
drivers/pinctrl/freescale/pinctrl-imx.c
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@ -617,7 +617,7 @@ static int imx_pinctrl_probe_dt(struct platform_device *pdev,
nfuncs = 1;
} else {
nfuncs = of_get_child_count(np);
if (nfuncs <= 0) {
if (nfuncs == 0) {
dev_err(&pdev->dev, "no functions defined\n");
return -EINVAL;
}