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| author | Marc Pignat <marc.pignat@hevs.ch> | 2007-01-09 14:00:11 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-02-07 15:44:35 -0800 |
| commit | 6dde896e4eac122f388263f0097b691acdc0396f (patch) | |
| tree | 0ddf6a08407524e9b936405302c918572f9855df /drivers/usb/host | |
| parent | f3f4906516a084bbd9aa3da7592e6b029fe78f5b (diff) | |
| download | talos-obmc-linux-6dde896e4eac122f388263f0097b691acdc0396f.tar.gz talos-obmc-linux-6dde896e4eac122f388263f0097b691acdc0396f.zip | |
USB: ohci-at91 refcount fix for irq wake enables
The attached patch fixes the unbalanced calls to enable_irq_wake() and
disable_irq_wake() in the AT91 USB Host driver.
It should resolve these kernel messages:
Unbalanced IRQ x wake disable
BUG: warning at kernel/irq/manage.c:167/set_irq_wake()
(The original code was debugged before a bug in the genirq wakeup irq
logic was fixed by adding the IRQ wake enable/disable refcounting.
Not all code yet uses the bugfixed model.)
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/ohci-at91.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 53f62cf7698b..930346487278 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -170,7 +170,6 @@ static int usb_hcd_at91_remove(struct usb_hcd *hcd, at91_stop_hc(pdev); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - disable_irq_wake(hcd->irq); clk_put(fclk); clk_put(iclk); @@ -271,8 +270,6 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg) if (device_may_wakeup(&pdev->dev)) enable_irq_wake(hcd->irq); - else - disable_irq_wake(hcd->irq); /* * The integrated transceivers seem unable to notice disconnect, @@ -293,6 +290,11 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg) static int ohci_hcd_at91_drv_resume(struct platform_device *pdev) { + struct usb_hcd *hcd = platform_get_drvdata(pdev); + + if (device_may_wakeup(&pdev->dev)) + disable_irq_wake(hcd->irq); + if (!clocked) { clk_enable(iclk); clk_enable(fclk); |
