pty: use mutex to protect alloc minor #13153
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If failed in pty_register2, it is possible to enter unregister_driver function, which eventually calls ptmx_minor_free, resulting in mutex conflict. Signed-off-by: yangsong8 <yangsong8@xiaomi.com>
xiaoxiang781216
approved these changes
Aug 25, 2024
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Summary
If failed in pty_register2, it is possible to enter unregister_driver function, which eventually calls ptmx_minor_free, resulting in mutex conflict.
Impact
Testing