From 9a8c051fc8dd21b9b9fe71c06b34d37db816e209 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 2 May 2025 11:39:29 +0300 Subject: [PATCH] mtd: rawnand: loongson1: Fix error code in ls1x_nand_dma_transfer() The "desc" variable is NULL and PTR_ERR(NULL) is zero/success. Return a negative error code instead. Fixes: d2d10ede04b1 ("mtd: rawnand: Add Loongson-1 NAND Controller Driver") Signed-off-by: Dan Carpenter Signed-off-by: Miquel Raynal Signed-off-by: maoxiaochuan --- drivers/mtd/nand/raw/loongson1-nand-controller.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/loongson1-nand-controller.c b/drivers/mtd/nand/raw/loongson1-nand-controller.c index 6a369b1c7..8754bb4f8 100644 --- a/drivers/mtd/nand/raw/loongson1-nand-controller.c +++ b/drivers/mtd/nand/raw/loongson1-nand-controller.c @@ -371,7 +371,7 @@ static int ls1x_nand_dma_transfer(struct ls1x_nand_host *host, struct ls1x_nand_ desc = dmaengine_prep_slave_single(chan, dma_addr, op->len, xfer_dir, DMA_PREP_INTERRUPT); if (!desc) { dev_err(dev, "failed to prepare DMA descriptor\n"); - ret = PTR_ERR(desc); + ret = -ENOMEM; goto err; } desc->callback = ls1x_nand_dma_callback;