[PATCH v1 18/19] mmc: jz4740_mmc: Fix error check for dma_map_sg
From: Jack Wang <jinpu.wang@ionos.com>
Date: 2022-08-19 06:10:02
Also in:
linux-mmc, lkml
Subsystem:
ingenic jz47xx socs, multimedia card (mmc), secure digital (sd) and sdio subsystem, the rest · Maintainers:
Paul Cercueil, Ulf Hansson, Linus Torvalds
dma_map_sg return 0 on error. Cc: Paul Cercueil <paul@crapouillou.net> Cc: Ulf Hansson <redacted> Cc: linux-mips@vger.kernel.org Cc: linux-mmc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Jack Wang <jinpu.wang@ionos.com> --- drivers/mmc/host/jz4740_mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index b1d563b2ed1b..666600055b06 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c@@ -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;
--
2.34.1