diff options
| author | Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> | 2013-03-13 16:12:46 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-03-13 22:23:04 +0400 |
| commit | de70ab87b1e4ba1669638381b80f2d90ea09576c (patch) | |
| tree | 19e5ec53b749d69c3c578581eb8adb900956a2c4 /drivers/net/wireless/ath/wil6210/interrupt.c | |
| parent | 102b1d99e555ddaddcc1bd7b0a976909c75aefc2 (diff) | |
| download | linux-de70ab87b1e4ba1669638381b80f2d90ea09576c.tar.xz | |
wil6210: fix FW error notification
user space get notified through kobject_uevent_env(), that might sleep and thus
should run in thread context.
Move user space notification to the thread handler, while mark FW is non-functional
right in the hard IRQ.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/interrupt.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/interrupt.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/wil6210/interrupt.c b/drivers/net/wireless/ath/wil6210/interrupt.c index dc97e7b2609c..de9b971ea159 100644 --- a/drivers/net/wireless/ath/wil6210/interrupt.c +++ b/drivers/net/wireless/ath/wil6210/interrupt.c @@ -257,10 +257,13 @@ static irqreturn_t wil6210_irq_misc(int irq, void *cookie) wil6210_mask_irq_misc(wil); if (isr & ISR_MISC_FW_ERROR) { - wil_dbg_irq(wil, "IRQ: Firmware error\n"); + wil_err(wil, "Firmware error detected\n"); clear_bit(wil_status_fwready, &wil->status); - wil_notify_fw_error(wil); - isr &= ~ISR_MISC_FW_ERROR; + /* + * do not clear @isr here - we do 2-nd part in thread + * there, user space get notified, and it should be done + * in non-atomic context + */ } if (isr & ISR_MISC_FW_READY) { @@ -289,6 +292,11 @@ static irqreturn_t wil6210_irq_misc_thread(int irq, void *cookie) wil_dbg_irq(wil, "Thread ISR MISC 0x%08x\n", isr); + if (isr & ISR_MISC_FW_ERROR) { + wil_notify_fw_error(wil); + isr &= ~ISR_MISC_FW_ERROR; + } + if (isr & ISR_MISC_MBOX_EVT) { wil_dbg_irq(wil, "MBOX event\n"); wmi_recv_cmd(wil); |