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(parent: 08880f8) | patch
rtl8188eu: Fix a possible sleep-in-atomic bug in rtw_createbss_cmd
authorJia-Ju Bai <baijiaju1990@163.com>
Sun, 8 Oct 2017 11:54:45 +0000 (19:54 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 18 Oct 2017 13:43:35 +0000 (15:43 +0200)
commit2bf9806d4228f7a6195f8e03eda0479d2a93b411
treef17a11f3fd660af30d286490be18c4baebbb1e2etree | snapshot
parent08880f8e08cbd814e870e9d3ab9530abc1bce226commit | diff
rtl8188eu: Fix a possible sleep-in-atomic bug in rtw_createbss_cmd

The driver may sleep under a spinlock, and the function call path is:
rtw_surveydone_event_callback(acquire the spinlock)
  rtw_createbss_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
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