提交 1d0926e9 编写于 作者: L Linus Torvalds

Merge tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull UIO fix from Greg KH:
 "Here is a single UIO fix that I forgot to send before 4.18-final came
  out. It reverts a UIO patch that went in the 4.18 development window
  that was causing problems.

  This patch has been in linux-next for a while with no problems, I just
  forgot to send it earlier, or as part of the larger char/misc patch
  series from yesterday, my fault"

* tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Revert "uio: use request_threaded_irq instead"
...@@ -442,13 +442,10 @@ static irqreturn_t uio_interrupt(int irq, void *dev_id) ...@@ -442,13 +442,10 @@ static irqreturn_t uio_interrupt(int irq, void *dev_id)
struct uio_device *idev = (struct uio_device *)dev_id; struct uio_device *idev = (struct uio_device *)dev_id;
irqreturn_t ret; irqreturn_t ret;
mutex_lock(&idev->info_lock);
ret = idev->info->handler(irq, idev->info); ret = idev->info->handler(irq, idev->info);
if (ret == IRQ_HANDLED) if (ret == IRQ_HANDLED)
uio_event_notify(idev->info); uio_event_notify(idev->info);
mutex_unlock(&idev->info_lock);
return ret; return ret;
} }
...@@ -962,9 +959,8 @@ int __uio_register_device(struct module *owner, ...@@ -962,9 +959,8 @@ int __uio_register_device(struct module *owner,
* FDs at the time of unregister and therefore may not be * FDs at the time of unregister and therefore may not be
* freed until they are released. * freed until they are released.
*/ */
ret = request_threaded_irq(info->irq, NULL, uio_interrupt, ret = request_irq(info->irq, uio_interrupt,
info->irq_flags, info->name, idev); info->irq_flags, info->name, idev);
if (ret) if (ret)
goto err_request_irq; goto err_request_irq;
} }
......
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