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| author | Jia-Ju Bai <baijiaju1990@163.com> | 2017-10-09 16:45:55 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-20 10:05:01 +0100 |
| commit | 2e03af22f65c67c1b0dcb0f98eee9061fe3bc0da (patch) | |
| tree | ce66a235bf5c06b434fc9f0fade1209b810df36a /include/linux/compiler-gcc.h | |
| parent | 930fb06d16171744f3ec3ca23cb3618f27bfd01b (diff) | |
vt6655: Fix a possible sleep-in-atomic bug in vt6655_suspend
[ Upstream commit 42c8eb3f6e15367981b274cb79ee4657e2c6949d ]
The driver may sleep under a spinlock, and the function call path is:
vt6655_suspend (acquire the spinlock)
pci_set_power_state
__pci_start_power_transition (drivers/pci/pci.c)
msleep --> may sleep
To fix it, pci_set_power_state is called without having a spinlock.
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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/compiler-gcc.h')
0 files changed, 0 insertions, 0 deletions