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media: stm32: dcmi: fix error handling on MDMA pool alloc failure

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Properly return an error if of_gen_pool_get or gen_pool_dma_zalloc
fails during the chained DMA probing.

Fixes: 87ebce19aa ("media: stm32: dcmi: addition of DMA-MDMA chaining support")
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Alain Volmat 2026-07-21 15:38:37 +02:00 committed by Hans Verkuil
parent 6962703102
commit 1bc5946763
1 changed files with 2 additions and 0 deletions
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2
drivers/media/platform/st/stm32/stm32-dcmi.c
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@ -2050,6 +2050,7 @@ static int dcmi_probe(struct platform_device *pdev)
dcmi->sram_pool = of_gen_pool_get(pdev->dev.of_node, "sram", 0);
if (!dcmi->sram_pool) {
dev_info(&pdev->dev, "No SRAM pool, can't use MDMA chaining\n");
ret = -ENOMEM;
goto err_dma_slave_config;
}
@ -2061,6 +2062,7 @@ static int dcmi_probe(struct platform_device *pdev)
&dcmi->sram_dma_buf);
if (!dcmi->sram_buf) {
dev_err(dcmi->dev, "Failed to allocate from SRAM\n");
ret = -ENOMEM;
goto err_dma_slave_config;
}