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author | Yang Yingliang <yangyingliang@huawei.com> | 2022-11-08 20:34:17 +0800 |
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committer | Ulf Hansson <ulf.hansson@linaro.org> | 2022-12-07 13:22:35 +0100 |
commit | 90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e (patch) | |
tree | 8d51e3a772111076fff77e0c087059bcc31b9ae6 /LICENSES | |
parent | a525cad241c339ca00bf7ebf03c5180f2a9b767c (diff) | |
download | linux-stable-90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e.tar.gz linux-stable-90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e.tar.bz2 linux-stable-90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e.zip |
mmc: meson-gx: fix return value check of mmc_add_host()
mmc_add_host() may return error, if we ignore its return value,
it will lead two issues:
1. The memory that allocated in mmc_alloc_host() is leaked.
2. In the remove() path, mmc_remove_host() will be called to
delete device, but it's not added yet, it will lead a kernel
crash because of null-ptr-deref in device_del().
Fix this by checking the return value and goto error path which
will call mmc_free_host().
Fixes: 51c5d8447bd7 ("MMC: meson: initial support for GX platforms")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20221108123417.479045-1-yangyingliang@huawei.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'LICENSES')
0 files changed, 0 insertions, 0 deletions