Messages in this thread - First message in thread
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- "Levin, Alexander (Sasha Levin)"
- ""
Patch in this message | | | From | "Levin, Alexander (Sasha Levin)" <> | Subject | [GIT PULL for-4.9 46/48] btmrvl: avoid double-disable_irq() race | Date | Wed, 11 Oct 2017 00:45:30 +0000 |
| |
From: Jeffy Chen <jeffy.chen@rock-chips.com>
[ Upstream commit 9af02d86e11dc409e5c3de46e81c0a492ba58905 ]
It's much the same as what we did for mwifiex in: b9da4d2 mwifiex: avoid double-disable_irq() race
"We have a race where the wakeup IRQ might be in flight while we're calling mwifiex_disable_wake() from resume(). This can leave us disabling the IRQ twice.
Let's disable the IRQ and enable it in case if we have double-disabled it."
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Reviewed-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> --- drivers/bluetooth/btmrvl_sdio.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c index d02f2c14df32..c738baeb6d45 100644 --- a/drivers/bluetooth/btmrvl_sdio.c +++ b/drivers/bluetooth/btmrvl_sdio.c @@ -1682,8 +1682,12 @@ static int btmrvl_sdio_resume(struct device *dev) /* Disable platform specific wakeup interrupt */ if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0) { disable_irq_wake(card->plt_wake_cfg->irq_bt); - if (!card->plt_wake_cfg->wake_by_bt) - disable_irq(card->plt_wake_cfg->irq_bt); + disable_irq(card->plt_wake_cfg->irq_bt); + if (card->plt_wake_cfg->wake_by_bt) + /* Undo our disable, since interrupt handler already + * did this. + */ + enable_irq(card->plt_wake_cfg->irq_bt); } return 0; -- 2.11.0
| |