* [PATCH v1 04/19] mtd: rawnand: stm32_fmc2: Fix dma_map_sg error check
[not found] <20220819060801.10443-1-jinpu.wang@ionos.com>
@ 2022-08-19 6:07 ` Jack Wang
2022-08-23 7:49 ` Christophe Kerello
2022-09-20 8:34 ` Miquel Raynal
2022-08-19 6:07 ` [PATCH v1 05/19] mtd: rawnand: marvell: Fix error handle regarding dma_map_sg Jack Wang
1 sibling, 2 replies; 5+ messages in thread
From: Jack Wang @ 2022-08-19 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
Maxime Coquelin, Alexandre Torgue, Philipp Zabel,
Christophe Kerello, Cai Huoqing, linux-mtd, linux-stm32,
linux-arm-kernel
dma_map_sg return 0 on error, in case of error return -EIO.
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Christophe Kerello <christophe.kerello@foss.st.com>
Cc: Cai Huoqing <cai.huoqing@linux.dev>
Cc: linux-mtd@lists.infradead.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
---
drivers/mtd/nand/raw/stm32_fmc2_nand.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
index 87c1c7dd97eb..a0c825af19fa 100644
--- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c
+++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
@@ -862,8 +862,8 @@ static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf,
ret = dma_map_sg(nfc->dev, nfc->dma_data_sg.sgl,
eccsteps, dma_data_dir);
- if (ret < 0)
- return ret;
+ if (!ret)
+ return -EIO;
desc_data = dmaengine_prep_slave_sg(dma_ch, nfc->dma_data_sg.sgl,
eccsteps, dma_transfer_dir,
@@ -893,8 +893,10 @@ static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf,
ret = dma_map_sg(nfc->dev, nfc->dma_ecc_sg.sgl,
eccsteps, dma_data_dir);
- if (ret < 0)
+ if (!ret) {
+ ret = -EIO;
goto err_unmap_data;
+ }
desc_ecc = dmaengine_prep_slave_sg(nfc->dma_ecc_ch,
nfc->dma_ecc_sg.sgl,
--
2.34.1
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH v1 05/19] mtd: rawnand: marvell: Fix error handle regarding dma_map_sg
[not found] <20220819060801.10443-1-jinpu.wang@ionos.com>
2022-08-19 6:07 ` [PATCH v1 04/19] mtd: rawnand: stm32_fmc2: Fix dma_map_sg error check Jack Wang
@ 2022-08-19 6:07 ` Jack Wang
2022-09-20 8:34 ` Miquel Raynal
1 sibling, 1 reply; 5+ messages in thread
From: Jack Wang @ 2022-08-19 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
Maxime Coquelin, Alexandre Torgue, Philipp Zabel,
Christophe Kerello, Cai Huoqing, linux-mtd, linux-stm32,
linux-arm-kernel
dma_map_sg return 0 on error, in case of error return -EIO,
also add the dma_unmap_sg as rollback on the following error.
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Christophe Kerello <christophe.kerello@foss.st.com>
Cc: Cai Huoqing <cai.huoqing@linux.dev>
Cc: linux-mtd@lists.infradead.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
---
drivers/mtd/nand/raw/marvell_nand.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/marvell_nand.c b/drivers/mtd/nand/raw/marvell_nand.c
index 2455a581fd70..d9f2f1d0b5ef 100644
--- a/drivers/mtd/nand/raw/marvell_nand.c
+++ b/drivers/mtd/nand/raw/marvell_nand.c
@@ -865,13 +865,19 @@ static int marvell_nfc_xfer_data_dma(struct marvell_nfc *nfc,
marvell_nfc_enable_dma(nfc);
/* Prepare the DMA transfer */
sg_init_one(&sg, nfc->dma_buf, dma_len);
- dma_map_sg(nfc->dma_chan->device->dev, &sg, 1, direction);
+ ret = dma_map_sg(nfc->dma_chan->device->dev, &sg, 1, direction);
+ if (!ret) {
+ dev_err(nfc->dev, "Could not map DMA S/G list\n");
+ return -ENXIO;
+ }
+
tx = dmaengine_prep_slave_sg(nfc->dma_chan, &sg, 1,
direction == DMA_FROM_DEVICE ?
DMA_DEV_TO_MEM : DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT);
if (!tx) {
dev_err(nfc->dev, "Could not prepare DMA S/G list\n");
+ dma_unmap_sg(nfc->dma_chan->device->dev, &sg, 1, direction);
return -ENXIO;
}
--
2.34.1
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v1 04/19] mtd: rawnand: stm32_fmc2: Fix dma_map_sg error check
2022-08-19 6:07 ` [PATCH v1 04/19] mtd: rawnand: stm32_fmc2: Fix dma_map_sg error check Jack Wang
@ 2022-08-23 7:49 ` Christophe Kerello
2022-09-20 8:34 ` Miquel Raynal
1 sibling, 0 replies; 5+ messages in thread
From: Christophe Kerello @ 2022-08-23 7:49 UTC (permalink / raw)
To: Jack Wang, linux-kernel
Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
Maxime Coquelin, Alexandre Torgue, Philipp Zabel, Cai Huoqing,
linux-mtd, linux-stm32, linux-arm-kernel
Hi Jack,
On 8/19/22 08:07, Jack Wang wrote:
> dma_map_sg return 0 on error, in case of error return -EIO.
>
> Cc: Miquel Raynal <miquel.raynal@bootlin.com>
> Cc: Richard Weinberger <richard@nod.at>
> Cc: Vignesh Raghavendra <vigneshr@ti.com>
> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
> Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
> Cc: Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Christophe Kerello <christophe.kerello@foss.st.com>
> Cc: Cai Huoqing <cai.huoqing@linux.dev>
> Cc: linux-mtd@lists.infradead.org
> Cc: linux-stm32@st-md-mailman.stormreply.com
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
> ---
> drivers/mtd/nand/raw/stm32_fmc2_nand.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
> index 87c1c7dd97eb..a0c825af19fa 100644
> --- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c
> +++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
> @@ -862,8 +862,8 @@ static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf,
>
> ret = dma_map_sg(nfc->dev, nfc->dma_data_sg.sgl,
> eccsteps, dma_data_dir);
> - if (ret < 0)
> - return ret;
> + if (!ret)
> + return -EIO;
>
> desc_data = dmaengine_prep_slave_sg(dma_ch, nfc->dma_data_sg.sgl,
> eccsteps, dma_transfer_dir,
> @@ -893,8 +893,10 @@ static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf,
>
> ret = dma_map_sg(nfc->dev, nfc->dma_ecc_sg.sgl,
> eccsteps, dma_data_dir);
> - if (ret < 0)
> + if (!ret) {
> + ret = -EIO;
> goto err_unmap_data;
> + }
>
> desc_ecc = dmaengine_prep_slave_sg(nfc->dma_ecc_ch,
> nfc->dma_ecc_sg.sgl,
Reviewed-by: Christophe Kerello <christophe.kerello@foss.st.com>
Regards,
Christophe Kerello.
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v1 05/19] mtd: rawnand: marvell: Fix error handle regarding dma_map_sg
2022-08-19 6:07 ` [PATCH v1 05/19] mtd: rawnand: marvell: Fix error handle regarding dma_map_sg Jack Wang
@ 2022-09-20 8:34 ` Miquel Raynal
0 siblings, 0 replies; 5+ messages in thread
From: Miquel Raynal @ 2022-09-20 8:34 UTC (permalink / raw)
To: Jack Wang, linux-kernel
Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
Maxime Coquelin, Alexandre Torgue, Philipp Zabel,
Christophe Kerello, Cai Huoqing, linux-mtd, linux-stm32,
linux-arm-kernel
On Fri, 2022-08-19 at 06:07:47 UTC, Jack Wang wrote:
> dma_map_sg return 0 on error, in case of error return -EIO,
> also add the dma_unmap_sg as rollback on the following error.
>
> Cc: Miquel Raynal <miquel.raynal@bootlin.com>
> Cc: Richard Weinberger <richard@nod.at>
> Cc: Vignesh Raghavendra <vigneshr@ti.com>
> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
> Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
> Cc: Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Christophe Kerello <christophe.kerello@foss.st.com>
> Cc: Cai Huoqing <cai.huoqing@linux.dev>
> Cc: linux-mtd@lists.infradead.org
> Cc: linux-stm32@st-md-mailman.stormreply.com
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-kernel@vger.kernel.org
>
> Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.
Miquel
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v1 04/19] mtd: rawnand: stm32_fmc2: Fix dma_map_sg error check
2022-08-19 6:07 ` [PATCH v1 04/19] mtd: rawnand: stm32_fmc2: Fix dma_map_sg error check Jack Wang
2022-08-23 7:49 ` Christophe Kerello
@ 2022-09-20 8:34 ` Miquel Raynal
1 sibling, 0 replies; 5+ messages in thread
From: Miquel Raynal @ 2022-09-20 8:34 UTC (permalink / raw)
To: Jack Wang, linux-kernel
Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
Maxime Coquelin, Alexandre Torgue, Philipp Zabel,
Christophe Kerello, Cai Huoqing, linux-mtd, linux-stm32,
linux-arm-kernel
On Fri, 2022-08-19 at 06:07:46 UTC, Jack Wang wrote:
> dma_map_sg return 0 on error, in case of error return -EIO.
>
> Cc: Miquel Raynal <miquel.raynal@bootlin.com>
> Cc: Richard Weinberger <richard@nod.at>
> Cc: Vignesh Raghavendra <vigneshr@ti.com>
> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
> Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
> Cc: Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Christophe Kerello <christophe.kerello@foss.st.com>
> Cc: Cai Huoqing <cai.huoqing@linux.dev>
> Cc: linux-mtd@lists.infradead.org
> Cc: linux-stm32@st-md-mailman.stormreply.com
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
> Reviewed-by: Christophe Kerello <christophe.kerello@foss.st.com>
Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.
Miquel
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
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2022-08-19 6:07 ` [PATCH v1 04/19] mtd: rawnand: stm32_fmc2: Fix dma_map_sg error check Jack Wang
2022-08-23 7:49 ` Christophe Kerello
2022-09-20 8:34 ` Miquel Raynal
2022-08-19 6:07 ` [PATCH v1 05/19] mtd: rawnand: marvell: Fix error handle regarding dma_map_sg Jack Wang
2022-09-20 8:34 ` Miquel Raynal
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