diff options
| author | Brian Norris <briannorris@chromium.org> | 2017-02-10 13:55:25 -0800 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2017-02-15 11:14:10 +0200 |
| commit | 2447e2cad75239ae407c0f98acf12511354208c5 (patch) | |
| tree | 4efc194e404b39ba6d55d552025a50ed9a407ad9 /drivers/net/wireless/marvell | |
| parent | 3a6282045b228f6de6abced74b793c71178fb948 (diff) | |
mwifiex: don't enable/disable IRQ 0 during suspend/resume
If we don't have an out-of-band wakeup IRQ configured through DT (as
most platforms don't), then we fall out of this function with
'irq_wakeup == 0'. Other code (e.g., mwifiex_disable_wake() and
mwifiex_enable_wake()) treats 'irq_wakeup >= 0' as a valid IRQ, and so
we end up calling {enable,disable}_irq() on IRQ 0.
That seems bad, so let's not do that.
Same problem as fixed in this patch:
https://patchwork.kernel.org/patch/9531693/
[PATCH v2 2/3] btmrvl: set irq_bt to -1 when failed to parse it
with the difference that:
(a) this one is actually a regression and
(b) this affects both device tree and non-device-tree systems
While fixing the regression, also drop the verbosity on the parse
failure, so we don't see this when a DT node is present but doesn't have
an interrupt property (this is perfectly legal):
[ 21.999000] mwifiex_pcie 0000:01:00.0: fail to parse irq_wakeup from device tree
Fixes: 853402a00823 ("mwifiex: Enable WoWLAN for both sdio and pcie")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Acked-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/marvell')
| -rw-r--r-- | drivers/net/wireless/marvell/mwifiex/main.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/wireless/marvell/mwifiex/main.c b/drivers/net/wireless/marvell/mwifiex/main.c index 9d80180a5519..5ebca1d0cfc7 100644 --- a/drivers/net/wireless/marvell/mwifiex/main.c +++ b/drivers/net/wireless/marvell/mwifiex/main.c @@ -1519,13 +1519,13 @@ static void mwifiex_probe_of(struct mwifiex_adapter *adapter) struct device *dev = adapter->dev; if (!dev->of_node) - return; + goto err_exit; adapter->dt_node = dev->of_node; adapter->irq_wakeup = irq_of_parse_and_map(adapter->dt_node, 0); if (!adapter->irq_wakeup) { - dev_info(dev, "fail to parse irq_wakeup from device tree\n"); - return; + dev_dbg(dev, "fail to parse irq_wakeup from device tree\n"); + goto err_exit; } ret = devm_request_irq(dev, adapter->irq_wakeup, @@ -1545,7 +1545,7 @@ static void mwifiex_probe_of(struct mwifiex_adapter *adapter) return; err_exit: - adapter->irq_wakeup = 0; + adapter->irq_wakeup = -1; } /* |