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mtd: spi-nor: cadence-quadspi: Don't initialize rx_dma_complete on failure

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[ Upstream commit 48aae57f0f9f57797772bd462b4d64902b1b4ae1 ]

If driver fails to acquire DMA channel then don't initialize
rx_dma_complete struct as it won't be used.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20200601070444.16923-4-vigneshr@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 2087e85bb66e ("spi: cadence-quadspi: fix suspend-resume implementations")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Vignesh Raghavendra
2020-06-01 12:34:39 +05:30
committed by Greg Kroah-Hartman
parent 7c69aeca59
commit ee5ffe4cdf
1 changed files with 1 additions and 0 deletions
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drivers/mtd/spi-nor/cadence-quadspi.c
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@@ -1179,6 +1179,7 @@ static void cqspi_request_mmap_dma(struct cqspi_st *cqspi)
if (IS_ERR(cqspi->rx_chan)) {
dev_err(&cqspi->pdev->dev, "No Rx DMA available\n");
cqspi->rx_chan = NULL;
return;
}
init_completion(&cqspi->rx_dma_complete);
}