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| author | Xu Yang <xu.yang_2@nxp.com> | 2023-03-17 09:15:16 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-30 13:51:36 +0300 |
| commit | 40a192ae30b28d103e513e4370239719136f291c (patch) | |
| tree | fec677492cacf4f36797d2974b9db0a192bb5384 /lib/notifier-error-inject.c | |
| parent | 9c79e5594dc57c8ac3e69001bc3d9eabe4b8c930 (diff) | |
| download | linux-40a192ae30b28d103e513e4370239719136f291c.tar.xz | |
usb: chipidea: core: fix possible concurrent when switch role
commit 451b15ed138ec15bffbebb58a00ebdd884c3e659 upstream.
The user may call role_store() when driver is handling
ci_handle_id_switch() which is triggerred by otg event or power lost
event. Unfortunately, the controller may go into chaos in this case.
Fix this by protecting it with mutex lock.
Fixes: a932a8041ff9 ("usb: chipidea: core: add sysfs group")
cc: <stable@vger.kernel.org>
Acked-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20230317061516.2451728-2-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions