From: Vladimir Zapolskiy <vz@kernel.org>
To: Sean Wang <sean.wang@mediatek.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Vinod Koul <vkoul@kernel.org>, Frank Li <Frank.Li@kernel.org>
Cc: Long Cheng <long.cheng@mediatek.com>,
dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org
Subject: [PATCH] dmaengine: mediatek: mtk-uart-apdma: Return -ENOMEM on memory allocation failure
Date: Wed, 1 Jul 2026 23:07:03 +0300 [thread overview]
Message-ID: <20260701200703.117929-1-vz@kernel.org> (raw)
If dynamic memory allocation in driver's probe function execution fails, it
should be reported to the driver's framework with -ENOMEM error code.
Fixes: 9135408c3ace ("dmaengine: mediatek: Add MediaTek UART APDMA support")
Signed-off-by: Vladimir Zapolskiy <vz@kernel.org>
---
drivers/dma/mediatek/mtk-uart-apdma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/mediatek/mtk-uart-apdma.c b/drivers/dma/mediatek/mtk-uart-apdma.c
index c269d84d7bd2..f74e9a328588 100644
--- a/drivers/dma/mediatek/mtk-uart-apdma.c
+++ b/drivers/dma/mediatek/mtk-uart-apdma.c
@@ -531,7 +531,7 @@ static int mtk_uart_apdma_probe(struct platform_device *pdev)
for (i = 0; i < mtkd->dma_requests; i++) {
c = devm_kzalloc(mtkd->ddev.dev, sizeof(*c), GFP_KERNEL);
if (!c) {
- rc = -ENODEV;
+ rc = -ENOMEM;
goto err_no_dma;
}
--
2.51.0
next reply other threads:[~2026-07-01 20:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-01 20:07 Vladimir Zapolskiy [this message]
2026-07-01 20:19 ` [PATCH] dmaengine: mediatek: mtk-uart-apdma: Return -ENOMEM on memory allocation failure sashiko-bot
2026-07-02 3:50 ` Frank Li
2026-07-02 8:21 ` AngeloGioacchino Del Regno
2026-07-02 15:32 ` Vinod Koul
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