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

[Colin King]

From: Colin Ian King <colin.k...@canonical.com>

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

Fixes: ae75ff814538 ("pinctrl: pinctrl-imx: add imx pinctrl core driver")
Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
 drivers/pinctrl/freescale/pinctrl-imx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c 
b/drivers/pinctrl/freescale/pinctrl-imx.c
index 24aaddd760a0..1e8ca83352d0 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -605,8 +605,8 @@ static int imx_pinctrl_probe_dt(struct platform_device 
*pdev,
        struct device_node *np = pdev->dev.of_node;
        struct device_node *child;
        struct pinctrl_dev *pctl = ipctl->pctl;
-       u32 nfuncs = 0;
-       u32 i = 0;
+       int nfuncs = 0;
+       int i = 0;
        bool flat_funcs;
 
        if (!np)
-- 
2.15.1