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author | Xu Yang <xu.yang_2@nxp.com> | 2023-03-17 14:15:16 +0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-30 12:49:24 +0200 |
commit | 4c1a06454f00ce3190ce78322cf05d54980f80e5 (patch) | |
tree | 9cc67efaf7fe87c1acf1dbe9bfc437efbc684996 /fs/overlayfs | |
parent | 4e3498143863f75ecbd3d06012ed30564cbe67a0 (diff) | |
download | linux-4c1a06454f00ce3190ce78322cf05d54980f80e5.tar.gz |
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 'fs/overlayfs')
0 files changed, 0 insertions, 0 deletions