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| author | Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com> | 2020-08-22 11:45:28 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-10 10:22:13 +0100 |
| commit | 4590499cb652e0ed215cc0ec2b981ae597a964b3 (patch) | |
| tree | e27ae5aecc7758e06458e10c180eccc0b92cb743 /init/init_task.c | |
| parent | 20e2bc0c5e59d11c5c77f8a4b000a3dc0c34c2d4 (diff) | |
mmc: via-sdmmc: Fix data race bug
[ Upstream commit 87d7ad089b318b4f319bf57f1daa64eb6d1d10ad ]
via_save_pcictrlreg() should be called with host->lock held
as it writes to pm_pcictrl_reg, otherwise there can be a race
condition between via_sd_suspend() and via_sdc_card_detect().
The same pattern is used in the function via_reset_pcictrl()
as well, where via_save_pcictrlreg() is called with host->lock
held.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Link: https://lore.kernel.org/r/20200822061528.7035-1-madhuparnabhowmik10@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'init/init_task.c')
0 files changed, 0 insertions, 0 deletions