Commit f7865ad8 authored by Jack Wang's avatar Jack Wang Committed by Ulf Hansson
Browse files

mmc: meson-mx-sdhc: Fix error check for dma_map_sg 



dma_map_sg return 0 on error, also change the type for dma_len
from int to unsigned int.

Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: default avatarJack Wang <jinpu.wang@ionos.com>
Link: https://lore.kernel.org/r/20220825074008.33349-2-jinpu.wang@ionos.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 5cbedf52

drivers/mmc/host/meson-mx-sdhc-mmc.c

+2 −2
Original line number Diff line number Diff line
@@ -381,14 +381,14 @@ static void meson_mx_sdhc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) 
static int meson_mx_sdhc_map_dma(struct mmc_host *mmc, struct mmc_request *mrq)

{

	struct mmc_data *data = mrq->data;

	int dma_len;

	unsigned int dma_len;



	if (!data)

		return 0;



	dma_len = dma_map_sg(mmc_dev(mmc), data->sg, data->sg_len,

			     mmc_get_dma_dir(data));

	if (dma_len <= 0) {

	if (!dma_len) {

		dev_err(mmc_dev(mmc), "dma_map_sg failed\n");

		return -ENOMEM;

	}