diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2020-07-06 13:20:58 +0200 |
|---|---|---|
| committer | Patrice Chotard <patrice.chotard@st.com> | 2020-07-28 17:43:46 +0200 |
| commit | ded48bec0568c7e94d3ef5ea10b13a46d0fd26a6 (patch) | |
| tree | a29481523880abc2e560c979ac51a77c8a1a224d /arch/arm/mach-stm32mp/cmd_stm32prog | |
| parent | 4b64265bb472fba6c820eb81074221c4bd485ba2 (diff) | |
arm: stm32mp: stm32prog: check result of find_mmc_device
Check result of find_mmc_device() before calling mmc_init().
This patch avoid a data abort when the command try to acces
to sd/mmc device deactivated in device tree.
Fixes: aff4c5dd8265 ("stm32mp: stm32prog: add MMC device")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Diffstat (limited to 'arch/arm/mach-stm32mp/cmd_stm32prog')
| -rw-r--r-- | arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c index c5b8841b23c..e4199dbaa59 100644 --- a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c +++ b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c @@ -560,7 +560,7 @@ static int init_device(struct stm32prog_data *data, #ifdef CONFIG_MMC case STM32PROG_MMC: mmc = find_mmc_device(dev->dev_id); - if (mmc_init(mmc)) { + if (!mmc || mmc_init(mmc)) { stm32prog_err("mmc device %d not found", dev->dev_id); return -ENODEV; } |