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(parent: cf2bfeb) | patch
rtl8188eu: Fix a possible sleep-in-atomic bug in rtw_disassoc_cmd
authorJia-Ju Bai <baijiaju1990@163.com>
Sun, 8 Oct 2017 11:54:07 +0000 (19:54 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 18 Oct 2017 13:43:35 +0000 (15:43 +0200)
commit08880f8e08cbd814e870e9d3ab9530abc1bce226
tree4a01ab5dacc11412e229e71d75d346c96bc0213ctree | snapshot
parentcf2bfebcc39f8d80273abdbafcd581b6bb148dc2commit | diff
rtl8188eu: Fix a possible sleep-in-atomic bug in rtw_disassoc_cmd

The driver may sleep under a spinlock, and the function call path is:
rtw_set_802_11_bssid(acquire the spinlock)
  rtw_disassoc_cmd
    kzalloc(GFP_KERNEL) --> may sleep

To fix it, GFP_KERNEL is replaced with GFP_ATOMIC.
This bug is found by my static analysis tool and my code review.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/rtl8188eu/core/rtw_cmd.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git