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mtd: rawnand: fsmc: Fix error code in fsmc_nand_probe()

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[ Upstream commit e7a97528e3c787802d8c643d6ab2f428511bb047 ]

If dma_request_channel() fails then the probe fails and it should
return a negative error code, but currently it returns success.

fixes: 4774fb0a48aa ("mtd: nand/fsmc: Add DMA support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/YCqaOZ83OvPOzLwh@mwanda
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2021-02-15 18:58:49 +03:00 committed by Greg Kroah-Hartman
parent 82a0cadf6f
commit c8f3837c51
1 changed files with 2 additions and 0 deletions
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2
drivers/mtd/nand/raw/fsmc_nand.c
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@ -1078,11 +1078,13 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
host->read_dma_chan = dma_request_channel(mask, filter, NULL);
if (!host->read_dma_chan) {
dev_err(&pdev->dev, "Unable to get read dma channel\n");
ret = -ENODEV;
goto disable_clk;
}
host->write_dma_chan = dma_request_channel(mask, filter, NULL);
if (!host->write_dma_chan) {
dev_err(&pdev->dev, "Unable to get write dma channel\n");
ret = -ENODEV;
goto release_dma_read_chan;
}
}