[PATCH 1/6] mmc: zynq_sdhci: Resolve uninitialized return value
Jaehoon Chung
jh80.chung at samsung.com
Fri Jul 9 11:37:43 CEST 2021
Hi Ashok,
On 7/9/21 4:17 PM, Ashok Reddy Soma wrote:
> set_phase() functions are not modifying the ret value and returning
> the same uninitialized ret, return 0 instead.
Why didn't you change from int to void?
Best Regards,
Jaehoon Chung
>
> Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma at xilinx.com>
> ---
>
> drivers/mmc/zynq_sdhci.c | 24 ++++++++++--------------
> 1 file changed, 10 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c
> index b79c4021b6..cb785fd735 100644
> --- a/drivers/mmc/zynq_sdhci.c
> +++ b/drivers/mmc/zynq_sdhci.c
> @@ -182,8 +182,8 @@ static int arasan_sdhci_execute_tuning(struct mmc *mmc, u8 opcode)
> * Set the SD Output Clock Tap Delays for Output path
> *
> * @host: Pointer to the sdhci_host structure.
> - * @degrees: The clock phase shift between 0 - 359.
> - * Return: 0 on success and error value on error
> + * @degrees The clock phase shift between 0 - 359.
> + * Return: 0
> */
> static int sdhci_zynqmp_sdcardclk_set_phase(struct sdhci_host *host,
> int degrees)
> @@ -191,7 +191,6 @@ static int sdhci_zynqmp_sdcardclk_set_phase(struct sdhci_host *host,
> struct arasan_sdhci_priv *priv = dev_get_priv(host->mmc->dev);
> struct mmc *mmc = (struct mmc *)host->mmc;
> u8 tap_delay, tap_max = 0;
> - int ret;
> int timing = mode2timing[mmc->selected_mode];
>
> /*
> @@ -229,7 +228,7 @@ static int sdhci_zynqmp_sdcardclk_set_phase(struct sdhci_host *host,
>
> arasan_zynqmp_set_tapdelay(priv->deviceid, 0, tap_delay);
>
> - return ret;
> + return 0;
> }
>
> /**
> @@ -238,8 +237,8 @@ static int sdhci_zynqmp_sdcardclk_set_phase(struct sdhci_host *host,
> * Set the SD Input Clock Tap Delays for Input path
> *
> * @host: Pointer to the sdhci_host structure.
> - * @degrees: The clock phase shift between 0 - 359.
> - * Return: 0 on success and error value on error
> + * @degrees The clock phase shift between 0 - 359.
> + * Return: 0
> */
> static int sdhci_zynqmp_sampleclk_set_phase(struct sdhci_host *host,
> int degrees)
> @@ -247,7 +246,6 @@ static int sdhci_zynqmp_sampleclk_set_phase(struct sdhci_host *host,
> struct arasan_sdhci_priv *priv = dev_get_priv(host->mmc->dev);
> struct mmc *mmc = (struct mmc *)host->mmc;
> u8 tap_delay, tap_max = 0;
> - int ret;
> int timing = mode2timing[mmc->selected_mode];
>
> /*
> @@ -285,7 +283,7 @@ static int sdhci_zynqmp_sampleclk_set_phase(struct sdhci_host *host,
>
> arasan_zynqmp_set_tapdelay(priv->deviceid, tap_delay, 0);
>
> - return ret;
> + return 0;
> }
>
> /**
> @@ -295,14 +293,13 @@ static int sdhci_zynqmp_sampleclk_set_phase(struct sdhci_host *host,
> *
> * @host: Pointer to the sdhci_host structure.
> * @degrees The clock phase shift between 0 - 359.
> - * Return: 0 on success and error value on error
> + * Return: 0
> */
> static int sdhci_versal_sdcardclk_set_phase(struct sdhci_host *host,
> int degrees)
> {
> struct mmc *mmc = (struct mmc *)host->mmc;
> u8 tap_delay, tap_max = 0;
> - int ret;
> int timing = mode2timing[mmc->selected_mode];
>
> /*
> @@ -349,7 +346,7 @@ static int sdhci_versal_sdcardclk_set_phase(struct sdhci_host *host,
> sdhci_writel(host, regval, SDHCI_ARASAN_OTAPDLY_REGISTER);
> }
>
> - return ret;
> + return 0;
> }
>
> /**
> @@ -359,14 +356,13 @@ static int sdhci_versal_sdcardclk_set_phase(struct sdhci_host *host,
> *
> * @host: Pointer to the sdhci_host structure.
> * @degrees The clock phase shift between 0 - 359.
> - * Return: 0 on success and error value on error
> + * Return: 0
> */
> static int sdhci_versal_sampleclk_set_phase(struct sdhci_host *host,
> int degrees)
> {
> struct mmc *mmc = (struct mmc *)host->mmc;
> u8 tap_delay, tap_max = 0;
> - int ret;
> int timing = mode2timing[mmc->selected_mode];
>
> /*
> @@ -417,7 +413,7 @@ static int sdhci_versal_sampleclk_set_phase(struct sdhci_host *host,
> sdhci_writel(host, regval, SDHCI_ARASAN_ITAPDLY_REGISTER);
> }
>
> - return ret;
> + return 0;
> }
>
> static void arasan_sdhci_set_tapdelay(struct sdhci_host *host)
>
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