diff options
| author | Chen Zhongjin <chenzhongjin@huawei.com> | 2022-11-09 12:02:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-14 12:15:36 +0300 |
| commit | 4ecb7a6e61b1e1605f49bb8a195e599e777baa4a (patch) | |
| tree | b81592cf1af7783e1f40807a0a1e8e2304427c97 /net/wireless | |
| parent | b2c0b94f48373ee743a4d63825a9d52364418837 (diff) | |
| download | linux-4ecb7a6e61b1e1605f49bb8a195e599e777baa4a.tar.xz | |
wifi: cfg80211: Fix not unregister reg_pdev when load_builtin_regdb_keys() fails
[ Upstream commit 833a9fd28c9b7ccb39a334721379e992dc1c0c89 ]
In regulatory_init_db(), when it's going to return a error, reg_pdev
should be unregistered. When load_builtin_regdb_keys() fails it doesn't
do it and makes cfg80211 can't be reload with report:
sysfs: cannot create duplicate filename '/devices/platform/regulatory.0'
...
<TASK>
dump_stack_lvl+0x79/0x9b
sysfs_warn_dup.cold+0x1c/0x29
sysfs_create_dir_ns+0x22d/0x290
kobject_add_internal+0x247/0x800
kobject_add+0x135/0x1b0
device_add+0x389/0x1be0
platform_device_add+0x28f/0x790
platform_device_register_full+0x376/0x4b0
regulatory_init+0x9a/0x4b2 [cfg80211]
cfg80211_init+0x84/0x113 [cfg80211]
...
Fixes: 90a53e4432b1 ("cfg80211: implement regdb signature checking")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Link: https://lore.kernel.org/r/20221109090237.214127-1-chenzhongjin@huawei.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/reg.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c index a1e64d967bd3..90297264d8ae 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -4185,8 +4185,10 @@ static int __init regulatory_init_db(void) return -EINVAL; err = load_builtin_regdb_keys(); - if (err) + if (err) { + platform_device_unregister(reg_pdev); return err; + } /* We always try to get an update for the static regdomain */ err = regulatory_hint_core(cfg80211_world_regdom->alpha2); |