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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2015-02-11 05:31:13 +0100 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-11 05:33:14 +0100 |
| commit | 5e05bf5833eb3dd97b6b6a52301d81e033714cb3 (patch) | |
| tree | 09d60b2da7bc9ac8d7179ee18d100a48b9a126a4 /drivers/acpi | |
| parent | virtio-mmio: Update the device to OASIS spec version (diff) | |
| download | linux-5e05bf5833eb3dd97b6b6a52301d81e033714cb3.tar.xz linux-5e05bf5833eb3dd97b6b6a52301d81e033714cb3.zip | |
virtio: Avoid possible kernel panic if DEBUG is enabled.
The virtqueue_add() calls START_USE() upon entry. The virtqueue_kick() is
called if vq->num_added == (1 << 16) - 1 before calling END_USE().
The virtqueue_kick_prepare() called via virtqueue_kick() calls START_USE()
upon entry, and will call panic() if DEBUG is enabled.
Move this virtqueue_kick() call to after END_USE() call.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/acpi')
0 files changed, 0 insertions, 0 deletions