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| author |   Stefan Wahren <wahrenst@gmx.net> | 2025-04-24 13:48:29 +0200 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2025-05-14 14:56:22 +0100 |
| commit | 5e27af0514e2249a9ccc9a762abd3b74e03a1f90 (patch) | |
| tree | 6d1127ebc8892264b66ac32a75585b690805a75a /drivers/dma | |
| parent | dmaengine: mediatek: Fix a possible deadlock error in mtk_cqdma_tx_status() (diff) | |
| download | linux-rng-5e27af0514e2249a9ccc9a762abd3b74e03a1f90.tar.xz linux-rng-5e27af0514e2249a9ccc9a762abd3b74e03a1f90.zip | |
dmaengine: fsl-edma: Fix return code for unhandled interrupts
For fsl,imx93-edma4 two DMA channels share the same interrupt.
So in case fsl_edma3_tx_handler is called for the "wrong"
channel, the return code must be IRQ_NONE. This signalize that
the interrupt wasn't handled.
Fixes: 72f5801a4e2b ("dmaengine: fsl-edma: integrate v3 support")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Joy Zou <joy.zou@nxp.com>
Link: https://lore.kernel.org/r/20250424114829.9055-1-wahrenst@gmx.net
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/fsl-edma-main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c index 756d67325db5..66bfa28d984e 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -57,7 +57,7 @@ static irqreturn_t fsl_edma3_tx_handler(int irq, void *dev_id) intr = edma_readl_chreg(fsl_chan, ch_int); if (!intr) - return IRQ_HANDLED; + return IRQ_NONE; edma_writel_chreg(fsl_chan, 1, ch_int); |