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mtd: rawnand: cadence: fix error code in cadence_nand_init()

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commit 2b9df00cde upstream.

Replace dma_request_channel() with dma_request_chan_by_mask() and use
helper functions to return proper error code instead of fixed -EBUSY.

Fixes: ec4ba01e89 ("mtd: rawnand: Add new Cadence NAND driver to MTD subsystem")
Cc: stable@vger.kernel.org
Signed-off-by: Niravkumar L Rabara <niravkumar.l.rabara@intel.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Niravkumar L Rabara
2025-02-10 13:35:49 +08:00
committed by Greg Kroah-Hartman
parent 29853440da
commit 0301f9b448
1 changed files with 4 additions and 5 deletions
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drivers/mtd/nand/raw/cadence-nand-controller.c
+4 -5
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@@ -2866,11 +2866,10 @@ static int cadence_nand_init(struct cdns_nand_ctrl *cdns_ctrl)
dma_cap_set(DMA_MEMCPY, mask);
if (cdns_ctrl->caps1->has_dma) {
cdns_ctrl->dmac = dma_request_channel(mask, NULL, NULL);
if (!cdns_ctrl->dmac) {
dev_err(cdns_ctrl->dev,
"Unable to get a DMA channel\n");
ret = -EBUSY;
cdns_ctrl->dmac = dma_request_chan_by_mask(&mask);
if (IS_ERR(cdns_ctrl->dmac)) {
ret = dev_err_probe(cdns_ctrl->dev, PTR_ERR(cdns_ctrl->dmac),
"%d: Failed to get a DMA channel\n", ret);
goto disable_irq;
}
}