From 551e325bbd3fb8b5a686ac1e6cf76e5641461cf2 Mon Sep 17 00:00:00 2001 From: Jack Wang Date: Fri, 26 Aug 2022 12:12:27 +0200 Subject: HSI: omap_ssi_port: Fix dma_map_sg error check dma_map_sg return 0 on error, in case of error return -EIO to caller. Cc: Sebastian Reichel Cc: linux-kernel@vger.kernel.org (open list) Fixes: b209e047bc74 ("HSI: Introduce OMAP SSI driver") Signed-off-by: Jack Wang Signed-off-by: Sebastian Reichel --- drivers/hsi/controllers/omap_ssi_port.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/hsi') diff --git a/drivers/hsi/controllers/omap_ssi_port.c b/drivers/hsi/controllers/omap_ssi_port.c index a0cb5be246e1..b9495b720f1b 100644 --- a/drivers/hsi/controllers/omap_ssi_port.c +++ b/drivers/hsi/controllers/omap_ssi_port.c @@ -230,10 +230,10 @@ static int ssi_start_dma(struct hsi_msg *msg, int lch) if (msg->ttype == HSI_MSG_READ) { err = dma_map_sg(&ssi->device, msg->sgt.sgl, msg->sgt.nents, DMA_FROM_DEVICE); - if (err < 0) { + if (!err) { dev_dbg(&ssi->device, "DMA map SG failed !\n"); pm_runtime_put_autosuspend(omap_port->pdev); - return err; + return -EIO; } csdp = SSI_DST_BURST_4x32_BIT | SSI_DST_MEMORY_PORT | SSI_SRC_SINGLE_ACCESS0 | SSI_SRC_PERIPHERAL_PORT | @@ -247,10 +247,10 @@ static int ssi_start_dma(struct hsi_msg *msg, int lch) } else { err = dma_map_sg(&ssi->device, msg->sgt.sgl, msg->sgt.nents, DMA_TO_DEVICE); - if (err < 0) { + if (!err) { dev_dbg(&ssi->device, "DMA map SG failed !\n"); pm_runtime_put_autosuspend(omap_port->pdev); - return err; + return -EIO; } csdp = SSI_SRC_BURST_4x32_BIT | SSI_SRC_MEMORY_PORT | SSI_DST_SINGLE_ACCESS0 | SSI_DST_PERIPHERAL_PORT | -- cgit v1.2.3