* [PATCH next] mmc: rtsx_usb_sdmmc: Fix uninitialized variable issue
@ 2025-08-21 12:32 Dan Carpenter
2025-08-22 10:15 ` Ulf Hansson
0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2025-08-21 12:32 UTC (permalink / raw)
To: Ricky Wu
Cc: Ulf Hansson, Avri Altman, Wolfram Sang, Binbin Zhou, linux-mmc,
linux-kernel, kernel-janitors
If rtsx_usb_get_card_status() fails then "val" isn't initialized.
Move the use of "val" until after the error checking.
Fixes: d2e6fb2c31a0 ("misc: rtsx: usb card reader: add OCP support")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
drivers/mmc/host/rtsx_usb_sdmmc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c
index e1ed39c657c3..70bd21084b97 100644
--- a/drivers/mmc/host/rtsx_usb_sdmmc.c
+++ b/drivers/mmc/host/rtsx_usb_sdmmc.c
@@ -785,13 +785,13 @@ static int sdmmc_get_cd(struct mmc_host *mmc)
mutex_unlock(&ucr->dev_mutex);
- /* get OCP status */
- host->ocp_stat = (val >> 4) & 0x03;
-
/* Treat failed detection as non-exist */
if (err)
goto no_card;
+ /* get OCP status */
+ host->ocp_stat = (val >> 4) & 0x03;
+
if (val & SD_CD) {
host->card_exist = true;
return 1;
--
2.47.2
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH next] mmc: rtsx_usb_sdmmc: Fix uninitialized variable issue
2025-08-21 12:32 [PATCH next] mmc: rtsx_usb_sdmmc: Fix uninitialized variable issue Dan Carpenter
@ 2025-08-22 10:15 ` Ulf Hansson
0 siblings, 0 replies; 2+ messages in thread
From: Ulf Hansson @ 2025-08-22 10:15 UTC (permalink / raw)
To: Dan Carpenter
Cc: Ricky Wu, Avri Altman, Wolfram Sang, Binbin Zhou, linux-mmc,
linux-kernel, kernel-janitors
On Thu, 21 Aug 2025 at 14:32, Dan Carpenter <dan.carpenter@linaro.org> wrote:
>
> If rtsx_usb_get_card_status() fails then "val" isn't initialized.
> Move the use of "val" until after the error checking.
>
> Fixes: d2e6fb2c31a0 ("misc: rtsx: usb card reader: add OCP support")
> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Applied for next, thanks!
Kind regards
Uffe
> ---
> drivers/mmc/host/rtsx_usb_sdmmc.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c
> index e1ed39c657c3..70bd21084b97 100644
> --- a/drivers/mmc/host/rtsx_usb_sdmmc.c
> +++ b/drivers/mmc/host/rtsx_usb_sdmmc.c
> @@ -785,13 +785,13 @@ static int sdmmc_get_cd(struct mmc_host *mmc)
>
> mutex_unlock(&ucr->dev_mutex);
>
> - /* get OCP status */
> - host->ocp_stat = (val >> 4) & 0x03;
> -
> /* Treat failed detection as non-exist */
> if (err)
> goto no_card;
>
> + /* get OCP status */
> + host->ocp_stat = (val >> 4) & 0x03;
> +
> if (val & SD_CD) {
> host->card_exist = true;
> return 1;
> --
> 2.47.2
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2025-08-21 12:32 [PATCH next] mmc: rtsx_usb_sdmmc: Fix uninitialized variable issue Dan Carpenter
2025-08-22 10:15 ` Ulf Hansson
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