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Subject[PATCH] drm/tegra: dpaux: Fix error handling
Date
'devm_pinctrl_register()' returns an error pointer or a valid handle. So
checking for NULL here is pointless and can never trigger.

Check the returned value with IS_ERR instead and propagate this value as
done in the other functions which call 'devm_pinctrl_register()'

Fixes: 0751bb5c44fe ("drm/tegra: dpaux: Add pinctrl support")

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/gpu/drm/tegra/dpaux.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c
index 059f409556d5..2fde44c3a1b3 100644
--- a/drivers/gpu/drm/tegra/dpaux.c
+++ b/drivers/gpu/drm/tegra/dpaux.c
@@ -539,9 +539,9 @@ static int tegra_dpaux_probe(struct platform_device *pdev)
dpaux->desc.owner = THIS_MODULE;

dpaux->pinctrl = devm_pinctrl_register(&pdev->dev, &dpaux->desc, dpaux);
- if (!dpaux->pinctrl) {
+ if (IS_ERR(dpaux->pinctrl)) {
dev_err(&pdev->dev, "failed to register pincontrol\n");
- return -ENODEV;
+ return PTR_ERR(dpaux->pinctrl);
}
#endif
/* enable and clear all interrupts */
--
2.9.3
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