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author | Lifeng Zheng <zhenglifeng1@huawei.com> | 2025-07-09 18:41:43 +0800 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-07-14 19:38:10 +0200 |
commit | d1378d1d7edb3a4c4935a44fe834ae135be03564 (patch) | |
tree | 40a2df3e4feb04c4f2d8a9a00697c7d2dea342ac /rust/helpers/bug.c | |
parent | 2a6c727387062a2ea79eb6cf5004820cb1b0afe2 (diff) |
cpufreq: Init policy->rwsem before it may be possibly used
In cpufreq_policy_put_kobj(), policy->rwsem is used. But in
cpufreq_policy_alloc(), if freq_qos_add_notifier() returns an error, error
path via err_kobj_remove or err_min_qos_notifier will be reached and
cpufreq_policy_put_kobj() will be called before policy->rwsem is
initialized. Thus, the calling of init_rwsem() should be moved to where
before these two error paths can be reached.
Fixes: 67d874c3b2c6 ("cpufreq: Register notifiers with the PM QoS framework")
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Link: https://patch.msgid.link/20250709104145.2348017-3-zhenglifeng1@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'rust/helpers/bug.c')
0 files changed, 0 insertions, 0 deletions