From: Vignesh Raghavendra vigneshr@ti.com
[ 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 --- drivers/mtd/spi-nor/cadence-quadspi.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/mtd/spi-nor/cadence-quadspi.c b/drivers/mtd/spi-nor/cadence-quadspi.c index 7e7736bbbfb3b..ad27d3e4c5dbc 100644 --- a/drivers/mtd/spi-nor/cadence-quadspi.c +++ b/drivers/mtd/spi-nor/cadence-quadspi.c @@ -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); }