From: Dan Carpenter <dan.carpenter@linaro.org>
To: Chen-Yu Tsai <wenst@chromium.org>
Cc: Sean Wang <sean.wang@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
linux-mediatek@lists.infradead.org, linux-gpio@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
kernel-janitors@vger.kernel.org
Subject: [PATCH next] pinctrl: mediatek: common-v1: Fix error checking in mtk_eint_init()
Date: Wed, 23 Apr 2025 11:23:15 +0300 [thread overview]
Message-ID: <aAijc10fHka1WAMX@stanley.mountain> (raw)
The devm_kzalloc() function doesn't return error pointers, it returns
NULL on error. Then on the next line it checks the same pointer again
by mistake, "->base" instead of "->base[0]".
Fixes: fe412e3a6c97 ("pinctrl: mediatek: common-v1: Fix EINT breakage on older controllers")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 7585de11854b..8596f3541265 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -1018,12 +1018,12 @@ static int mtk_eint_init(struct mtk_pinctrl *pctl, struct platform_device *pdev)
pctl->eint->nbase = 1;
/* mtk-eint expects an array */
pctl->eint->base = devm_kzalloc(pctl->dev, sizeof(pctl->eint->base), GFP_KERNEL);
- if (IS_ERR(pctl->eint->base))
+ if (!pctl->eint->base)
return -ENOMEM;
pctl->eint->base[0] = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(pctl->eint->base))
- return PTR_ERR(pctl->eint->base);
+ if (IS_ERR(pctl->eint->base[0]))
+ return PTR_ERR(pctl->eint->base[0]);
pctl->eint->irq = irq_of_parse_and_map(np, 0);
if (!pctl->eint->irq)
--
2.47.2
next reply other threads:[~2025-04-23 11:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-23 8:23 Dan Carpenter [this message]
2025-04-23 10:59 ` [PATCH next] pinctrl: mediatek: common-v1: Fix error checking in mtk_eint_init() Linus Walleij
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