diff options
| author | Jack Wang <jinpu.wang@ionos.com> | 2022-08-25 10:40:08 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2022-09-14 12:53:47 +0300 |
| commit | 8827f85e3010a26b18ab7401e535c80b0d023ce0 (patch) | |
| tree | 3380ece43f7b5e8d55b5148adda6a0209ab59e0c /drivers/mmc | |
| parent | f7865ad8b4003ec75faf4a69363a804851b68c7d (diff) | |
mmc: jz4740_mmc: Fix error check for dma_map_sg
dma_map_sg return 0 on error.
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220825074008.33349-3-jinpu.wang@ionos.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/jz4740_mmc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c index b1d563b2ed1b..dc2db9c185ea 100644 --- a/drivers/mmc/host/jz4740_mmc.c +++ b/drivers/mmc/host/jz4740_mmc.c @@ -298,7 +298,7 @@ static int jz4740_mmc_prepare_dma_data(struct jz4740_mmc_host *host, { struct dma_chan *chan = jz4740_mmc_get_dma_chan(host, data); enum dma_data_direction dir = mmc_get_dma_dir(data); - int sg_count; + unsigned int sg_count; if (data->host_cookie == COOKIE_PREMAPPED) return data->sg_count; @@ -308,7 +308,7 @@ static int jz4740_mmc_prepare_dma_data(struct jz4740_mmc_host *host, data->sg_len, dir); - if (sg_count <= 0) { + if (!sg_count) { dev_err(mmc_dev(host->mmc), "Failed to map scatterlist for DMA operation\n"); return -EINVAL; |