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dmaengine: at_hdmac: Check return code of dma_async_device_register

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dma_async_device_register() can fail, check the return code and display an
error.

Fixes: dc78baa2b9 ("dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-16-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Tudor Ambarus 2022-10-25 12:02:49 +03:00 committed by Vinod Koul
parent 28cbe5a0a4
commit c47e6403fa
1 changed files with 6 additions and 1 deletions
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7
drivers/dma/at_hdmac.c
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@ -1928,7 +1928,11 @@ static int __init at_dma_probe(struct platform_device *pdev)
dma_has_cap(DMA_SLAVE, atdma->dma_common.cap_mask) ? "slave " : "",
plat_dat->nr_channels);
dma_async_device_register(&atdma->dma_common);
err = dma_async_device_register(&atdma->dma_common);
if (err) {
dev_err(&pdev->dev, "Unable to register: %d.\n", err);
goto err_dma_async_device_register;
}
/*
* Do not return an error if the dmac node is not present in order to
@ -1948,6 +1952,7 @@ static int __init at_dma_probe(struct platform_device *pdev)
err_of_dma_controller_register:
dma_async_device_unregister(&atdma->dma_common);
err_dma_async_device_register:
dma_pool_destroy(atdma->memset_pool);
err_memset_pool_create:
dma_pool_destroy(atdma->dma_desc_pool);