Commit 173dddce authored by Yang Yingliang's avatar Yang Yingliang Committed by sanglipeng
Browse files

wifi: rtlwifi: rtl8188ee: don't call kfree_skb() under spin_lock_irqsave()

stable inclusion
from stable-v5.10.173
commit 97018e737bd0d3391c3a8c6fcce652fa1dff64b7
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8BFR3

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=97018e737bd0d3391c3a8c6fcce652fa1dff64b7



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[ Upstream commit 2611687f ]

It is not allowed to call kfree_skb() from hardware interrupt
context or with interrupts being disabled. All the SKBs have
been dequeued from the old queue, so it's safe to enqueue these
SKBs to a free queue, then free them after spin_unlock_irqrestore()
at once. Compile tested only.

Fixes: 7fe3b3ab ("rtlwifi: rtl8188ee: rtl8821ae: Fix a queue locking problem")
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Acked-by: default avatarPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221207141411.46098-3-yangyingliang@huawei.com


Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarsanglipeng <sanglipeng1@jd.com>
parent 05606d28
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