5.15-stable review patch. If anyone has any objections, please let me know.
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From: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org
[ Upstream commit c0eb059a4575ed57f265d9883a5203799c19982c ]
Error paths of mtk_devapc_probe() should unmap the memory. Reported by Smatch:
drivers/soc/mediatek/mtk-devapc.c:292 mtk_devapc_probe() warn: 'ctx->infra_base' from of_iomap() not released on lines: 277,281,286.
Fixes: 0890beb22618 ("soc: mediatek: add mt6779 devapc driver") Cc: stable@vger.kernel.org Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Link: https://lore.kernel.org/r/20250104142012.115974-1-krzysztof.kozlowski@linaro... Signed-off-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/soc/mediatek/mtk-devapc.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/drivers/soc/mediatek/mtk-devapc.c b/drivers/soc/mediatek/mtk-devapc.c index 1ab7ca82745c6..552726456fa2f 100644 --- a/drivers/soc/mediatek/mtk-devapc.c +++ b/drivers/soc/mediatek/mtk-devapc.c @@ -258,23 +258,31 @@ static int mtk_devapc_probe(struct platform_device *pdev) return -EINVAL;
devapc_irq = irq_of_parse_and_map(node, 0); - if (!devapc_irq) - return -EINVAL; + if (!devapc_irq) { + ret = -EINVAL; + goto err; + }
ctx->infra_clk = devm_clk_get_enabled(&pdev->dev, "devapc-infra-clock"); - if (IS_ERR(ctx->infra_clk)) - return -EINVAL; + if (IS_ERR(ctx->infra_clk)) { + ret = -EINVAL; + goto err; + }
ret = devm_request_irq(&pdev->dev, devapc_irq, devapc_violation_irq, IRQF_TRIGGER_NONE, "devapc", ctx); if (ret) - return ret; + goto err;
platform_set_drvdata(pdev, ctx);
start_devapc(ctx);
return 0; + +err: + iounmap(ctx->infra_base); + return ret; }
static int mtk_devapc_remove(struct platform_device *pdev)