On Tue Jul 21 15:38:37 2026 +0200, Alain Volmat wrote:
> Properly return an error if of_gen_pool_get or gen_pool_dma_zalloc
> fails during the chained DMA probing.
>
> Fixes: 87ebce19aa03 ("media: stm32: dcmi: addition of DMA-MDMA chaining
> support")
> Signed-off-by: Alain Volmat <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
drivers/media/platform/st/stm32/stm32-dcmi.c | 2 ++
1 file changed, 2 insertions(+)
---
diff --git a/drivers/media/platform/st/stm32/stm32-dcmi.c
b/drivers/media/platform/st/stm32/stm32-dcmi.c
index b1f9af8edf6e..ad716cf0633e 100644
--- a/drivers/media/platform/st/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/st/stm32/stm32-dcmi.c
@@ -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;
}
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