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| author | Jia-Ju Bai <baijiaju1990@gmail.com> | 2017-12-12 20:51:53 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-18 15:59:18 +0100 |
| commit | 97784615ed32c1ef33047e95d4240141258e2cf0 (patch) | |
| tree | add904df57c13e4223eefad1bd601c3a50706471 /scripts/Makefile.build | |
| parent | de2ee48c39b6af95121b33c6c5531e0475e12a3a (diff) | |
| download | talos-obmc-linux-97784615ed32c1ef33047e95d4240141258e2cf0.tar.gz talos-obmc-linux-97784615ed32c1ef33047e95d4240141258e2cf0.zip | |
vme: Fix a possible sleep-in-atomic bug in vme_tsi148
The driver may sleep under a spinlock.
The function call path is:
tsi148_master_write \ tsi148_master_read (acquire the spinlock)
vme_register_error_handler
kmalloc(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 'scripts/Makefile.build')
0 files changed, 0 insertions, 0 deletions
