* [PATCH] mtd: rawnand: fsmc: Fix error code in fsmc_nand_probe()
@ 2021-02-15 15:58 Dan Carpenter
2021-03-02 16:32 ` Miquel Raynal
0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2021-02-15 15:58 UTC (permalink / raw)
To: Miquel Raynal, Vipin Kumar
Cc: Richard Weinberger, Vignesh Raghavendra, Boris Brezillon,
Tony Luck, Fenghua Yu, linux-mtd, linux-kernel, kernel-janitors
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>
---
drivers/mtd/nand/raw/fsmc_nand.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c
index 0101c0fab50a..a24e2f57fa68 100644
--- a/drivers/mtd/nand/raw/fsmc_nand.c
+++ b/drivers/mtd/nand/raw/fsmc_nand.c
@@ -1077,11 +1077,13 @@ 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;
}
}
--
2.30.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] mtd: rawnand: fsmc: Fix error code in fsmc_nand_probe()
2021-02-15 15:58 [PATCH] mtd: rawnand: fsmc: Fix error code in fsmc_nand_probe() Dan Carpenter
@ 2021-03-02 16:32 ` Miquel Raynal
0 siblings, 0 replies; 2+ messages in thread
From: Miquel Raynal @ 2021-03-02 16:32 UTC (permalink / raw)
To: Dan Carpenter, Miquel Raynal, Vipin Kumar
Cc: Fenghua Yu, Tony Luck, Vignesh Raghavendra, Richard Weinberger,
kernel-janitors, linux-kernel, Boris Brezillon, linux-mtd
On Mon, 2021-02-15 at 15:58:49 UTC, Dan Carpenter wrote:
> 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>
Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.
Miquel
^ permalink raw reply [flat|nested] 2+ messages in thread
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