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spi: mtk-snfi: preserve dma_mapping_error() error codes

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Return -ENOMEM of there is a dma mapping error.  Do not return success.

Fixes: 764f1b7481 ("spi: add driver for MTK SPI NAND Flash Interface")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Chuanhong Guo <gch981213@gmail.com>
Link: https://lore.kernel.org/r/YmwjUcTKyQNrrn2g@kili
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Dan Carpenter 2022-04-29 20:41:37 +03:00 committed by Mark Brown
parent 69bb9b29bf
commit 73c1a5153e
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 4 additions and 2 deletions
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6
drivers/spi/spi-mtk-snfi.c
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@ -903,7 +903,8 @@ static int mtk_snand_read_page_cache(struct mtk_snand *snf,
nfi_write32(snf, NFI_CON, (snf->nfi_cfg.nsectors << CON_SEC_NUM_S));
buf_dma = dma_map_single(snf->dev, buf, dma_len, DMA_FROM_DEVICE);
if (dma_mapping_error(snf->dev, buf_dma)) {
ret = dma_mapping_error(snf->dev, buf_dma);
if (ret) {
dev_err(snf->dev, "DMA mapping failed.\n");
goto cleanup;
}
@ -1092,7 +1093,8 @@ static int mtk_snand_write_page_cache(struct mtk_snand *snf,
nfi_write32(snf, NFI_CON, (snf->nfi_cfg.nsectors << CON_SEC_NUM_S));
buf_dma = dma_map_single(snf->dev, snf->buf, dma_len, DMA_TO_DEVICE);
if (dma_mapping_error(snf->dev, buf_dma)) {
ret = dma_mapping_error(snf->dev, buf_dma);
if (ret) {
dev_err(snf->dev, "DMA mapping failed.\n");
goto cleanup;
}