* [PATCH 1/2] mmc: moxart: remove unneeded check for drvdata
@ 2020-09-23 15:37 Krzysztof Kozlowski
2020-09-23 15:37 ` [PATCH 2/2] mmc: sdhci: fix indentation mistakes Krzysztof Kozlowski
2020-09-24 12:49 ` [PATCH 1/2] mmc: moxart: remove unneeded check for drvdata Ulf Hansson
0 siblings, 2 replies; 4+ messages in thread
From: Krzysztof Kozlowski @ 2020-09-23 15:37 UTC (permalink / raw)
To: Ulf Hansson, Adrian Hunter, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Orson Zhai, Baolin Wang, Chunyan Zhang, linux-mmc, linux-kernel,
linux-arm-kernel
Cc: Krzysztof Kozlowski
The 'struct mmc_host *mmc' comes from drvdata set at the end of probe,
so it cannot be NULL. The code already dereferences it few lines before
the check with mmc_priv(). This also fixes smatch warning:
drivers/mmc/host/moxart-mmc.c:692 moxart_remove() warn: variable dereferenced before check 'mmc' (see line 688)
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
drivers/mmc/host/moxart-mmc.c | 23 +++++++++++------------
1 file changed, 11 insertions(+), 12 deletions(-)
diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c
index 2bfb376fddc4..f25079ba3bca 100644
--- a/drivers/mmc/host/moxart-mmc.c
+++ b/drivers/mmc/host/moxart-mmc.c
@@ -689,19 +689,18 @@ static int moxart_remove(struct platform_device *pdev)
dev_set_drvdata(&pdev->dev, NULL);
- if (mmc) {
- if (!IS_ERR(host->dma_chan_tx))
- dma_release_channel(host->dma_chan_tx);
- if (!IS_ERR(host->dma_chan_rx))
- dma_release_channel(host->dma_chan_rx);
- mmc_remove_host(mmc);
- mmc_free_host(mmc);
+ if (!IS_ERR(host->dma_chan_tx))
+ dma_release_channel(host->dma_chan_tx);
+ if (!IS_ERR(host->dma_chan_rx))
+ dma_release_channel(host->dma_chan_rx);
+ mmc_remove_host(mmc);
+ mmc_free_host(mmc);
+
+ writel(0, host->base + REG_INTERRUPT_MASK);
+ writel(0, host->base + REG_POWER_CONTROL);
+ writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF,
+ host->base + REG_CLOCK_CONTROL);
- writel(0, host->base + REG_INTERRUPT_MASK);
- writel(0, host->base + REG_POWER_CONTROL);
- writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF,
- host->base + REG_CLOCK_CONTROL);
- }
return 0;
}
--
2.17.1
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH 2/2] mmc: sdhci: fix indentation mistakes
2020-09-23 15:37 [PATCH 1/2] mmc: moxart: remove unneeded check for drvdata Krzysztof Kozlowski
@ 2020-09-23 15:37 ` Krzysztof Kozlowski
2020-09-24 12:49 ` Ulf Hansson
2020-09-24 12:49 ` [PATCH 1/2] mmc: moxart: remove unneeded check for drvdata Ulf Hansson
1 sibling, 1 reply; 4+ messages in thread
From: Krzysztof Kozlowski @ 2020-09-23 15:37 UTC (permalink / raw)
To: Ulf Hansson, Adrian Hunter, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Orson Zhai, Baolin Wang, Chunyan Zhang, linux-mmc, linux-kernel,
linux-arm-kernel
Cc: Krzysztof Kozlowski
Fix inconsistent indenting, reported by Smatch:
drivers/mmc/host/sdhci-esdhc-imx.c:1380 sdhci_esdhc_imx_hwinit() warn: inconsistent indenting
drivers/mmc/host/sdhci-sprd.c:390 sdhci_sprd_request_done() warn: inconsistent indenting
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
drivers/mmc/host/sdhci-esdhc-imx.c | 2 +-
drivers/mmc/host/sdhci-sprd.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 62b3d4767916..fce8fa7e6b30 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1377,7 +1377,7 @@ static void sdhci_esdhc_imx_hwinit(struct sdhci_host *host)
* response, block the tuning procedure or the first command
* after the whole tuning procedure always can't get any response.
*/
- tmp |= ESDHC_TUNING_CMD_CRC_CHECK_DISABLE;
+ tmp |= ESDHC_TUNING_CMD_CRC_CHECK_DISABLE;
writel(tmp, host->ioaddr + ESDHC_TUNING_CTRL);
} else if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
/*
diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c
index 1efaf602c206..58109c5b53e2 100644
--- a/drivers/mmc/host/sdhci-sprd.c
+++ b/drivers/mmc/host/sdhci-sprd.c
@@ -387,7 +387,7 @@ static void sdhci_sprd_request_done(struct sdhci_host *host,
if (mmc_hsq_finalize_request(host->mmc, mrq))
return;
- mmc_request_done(host->mmc, mrq);
+ mmc_request_done(host->mmc, mrq);
}
static struct sdhci_ops sdhci_sprd_ops = {
@@ -433,7 +433,7 @@ static void sdhci_sprd_request(struct mmc_host *mmc, struct mmc_request *mrq)
}
static int sdhci_sprd_request_atomic(struct mmc_host *mmc,
- struct mmc_request *mrq)
+ struct mmc_request *mrq)
{
sdhci_sprd_check_auto_cmd23(mmc, mrq);
--
2.17.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2] mmc: moxart: remove unneeded check for drvdata
2020-09-23 15:37 [PATCH 1/2] mmc: moxart: remove unneeded check for drvdata Krzysztof Kozlowski
2020-09-23 15:37 ` [PATCH 2/2] mmc: sdhci: fix indentation mistakes Krzysztof Kozlowski
@ 2020-09-24 12:49 ` Ulf Hansson
1 sibling, 0 replies; 4+ messages in thread
From: Ulf Hansson @ 2020-09-24 12:49 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Shawn Guo, Sascha Hauer, linux-mmc, Adrian Hunter,
Linux Kernel Mailing List, NXP Linux Team,
Pengutronix Kernel Team, Chunyan Zhang, Baolin Wang, Orson Zhai,
Fabio Estevam, Linux ARM
On Wed, 23 Sep 2020 at 17:37, Krzysztof Kozlowski <krzk@kernel.org> wrote:
>
> The 'struct mmc_host *mmc' comes from drvdata set at the end of probe,
> so it cannot be NULL. The code already dereferences it few lines before
> the check with mmc_priv(). This also fixes smatch warning:
>
> drivers/mmc/host/moxart-mmc.c:692 moxart_remove() warn: variable dereferenced before check 'mmc' (see line 688)
>
> Reported-by: kernel test robot <lkp@intel.com>
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Applied for next, thanks!
Kind regards
Uffe
> ---
> drivers/mmc/host/moxart-mmc.c | 23 +++++++++++------------
> 1 file changed, 11 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c
> index 2bfb376fddc4..f25079ba3bca 100644
> --- a/drivers/mmc/host/moxart-mmc.c
> +++ b/drivers/mmc/host/moxart-mmc.c
> @@ -689,19 +689,18 @@ static int moxart_remove(struct platform_device *pdev)
>
> dev_set_drvdata(&pdev->dev, NULL);
>
> - if (mmc) {
> - if (!IS_ERR(host->dma_chan_tx))
> - dma_release_channel(host->dma_chan_tx);
> - if (!IS_ERR(host->dma_chan_rx))
> - dma_release_channel(host->dma_chan_rx);
> - mmc_remove_host(mmc);
> - mmc_free_host(mmc);
> + if (!IS_ERR(host->dma_chan_tx))
> + dma_release_channel(host->dma_chan_tx);
> + if (!IS_ERR(host->dma_chan_rx))
> + dma_release_channel(host->dma_chan_rx);
> + mmc_remove_host(mmc);
> + mmc_free_host(mmc);
> +
> + writel(0, host->base + REG_INTERRUPT_MASK);
> + writel(0, host->base + REG_POWER_CONTROL);
> + writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF,
> + host->base + REG_CLOCK_CONTROL);
>
> - writel(0, host->base + REG_INTERRUPT_MASK);
> - writel(0, host->base + REG_POWER_CONTROL);
> - writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF,
> - host->base + REG_CLOCK_CONTROL);
> - }
> return 0;
> }
>
> --
> 2.17.1
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 2/2] mmc: sdhci: fix indentation mistakes
2020-09-23 15:37 ` [PATCH 2/2] mmc: sdhci: fix indentation mistakes Krzysztof Kozlowski
@ 2020-09-24 12:49 ` Ulf Hansson
0 siblings, 0 replies; 4+ messages in thread
From: Ulf Hansson @ 2020-09-24 12:49 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Shawn Guo, Sascha Hauer, linux-mmc, Adrian Hunter,
Linux Kernel Mailing List, NXP Linux Team,
Pengutronix Kernel Team, Chunyan Zhang, Baolin Wang, Orson Zhai,
Fabio Estevam, Linux ARM
On Wed, 23 Sep 2020 at 17:38, Krzysztof Kozlowski <krzk@kernel.org> wrote:
>
> Fix inconsistent indenting, reported by Smatch:
>
> drivers/mmc/host/sdhci-esdhc-imx.c:1380 sdhci_esdhc_imx_hwinit() warn: inconsistent indenting
> drivers/mmc/host/sdhci-sprd.c:390 sdhci_sprd_request_done() warn: inconsistent indenting
>
> Reported-by: kernel test robot <lkp@intel.com>
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Applied for next, thanks!
Kind regards
Uffe
> ---
> drivers/mmc/host/sdhci-esdhc-imx.c | 2 +-
> drivers/mmc/host/sdhci-sprd.c | 4 ++--
> 2 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
> index 62b3d4767916..fce8fa7e6b30 100644
> --- a/drivers/mmc/host/sdhci-esdhc-imx.c
> +++ b/drivers/mmc/host/sdhci-esdhc-imx.c
> @@ -1377,7 +1377,7 @@ static void sdhci_esdhc_imx_hwinit(struct sdhci_host *host)
> * response, block the tuning procedure or the first command
> * after the whole tuning procedure always can't get any response.
> */
> - tmp |= ESDHC_TUNING_CMD_CRC_CHECK_DISABLE;
> + tmp |= ESDHC_TUNING_CMD_CRC_CHECK_DISABLE;
> writel(tmp, host->ioaddr + ESDHC_TUNING_CTRL);
> } else if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
> /*
> diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c
> index 1efaf602c206..58109c5b53e2 100644
> --- a/drivers/mmc/host/sdhci-sprd.c
> +++ b/drivers/mmc/host/sdhci-sprd.c
> @@ -387,7 +387,7 @@ static void sdhci_sprd_request_done(struct sdhci_host *host,
> if (mmc_hsq_finalize_request(host->mmc, mrq))
> return;
>
> - mmc_request_done(host->mmc, mrq);
> + mmc_request_done(host->mmc, mrq);
> }
>
> static struct sdhci_ops sdhci_sprd_ops = {
> @@ -433,7 +433,7 @@ static void sdhci_sprd_request(struct mmc_host *mmc, struct mmc_request *mrq)
> }
>
> static int sdhci_sprd_request_atomic(struct mmc_host *mmc,
> - struct mmc_request *mrq)
> + struct mmc_request *mrq)
> {
> sdhci_sprd_check_auto_cmd23(mmc, mrq);
>
> --
> 2.17.1
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-09-24 12:51 UTC | newest]
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2020-09-23 15:37 [PATCH 1/2] mmc: moxart: remove unneeded check for drvdata Krzysztof Kozlowski
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2020-09-24 12:49 ` [PATCH 1/2] mmc: moxart: remove unneeded check for drvdata Ulf Hansson
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