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| author |   Jia-Ju Bai <baijiaju1990@gmail.com> | 2017-12-12 21:08:06 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-13 12:48:46 +0100 |
| commit | 705f385849b209605dadf0450effd96947fdb6c6 (patch) | |
| tree | 882ab89ea7d758c45413b0072d1eb5e725cea13b /tools/perf/scripts/python | |
| parent | staging: rtl8712: Cleanup codestyle, change spaces to tabs (diff) | |
rtl8188eu: Fix a possible sleep-in-atomic bug in set_tx_beacon_cmd
The driver may sleep under a spinlock.
The function call path is:
update_beacon (acquire the spinlock)
update_BCNTIM
set_tx_beacon_cmd
kzalloc(GFP_KERNEL) --> may sleep
kmemdup(GFP_KERNEL) --> may sleep
To fix it, GFP_KERNEL is replaced with GFP_ATOMIC.
This bug is found by my static analysis tool(DSAC) and checked by my code review.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions