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Char/Misc fix for 4.19-rc1

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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.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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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"
This commit is contained in:
Linus Torvalds 2018-08-19 09:30:44 -07:00
commit 1d0926e99d
1 changed files with 2 additions and 6 deletions
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8
drivers/uio/uio.c
View File

@ -442,13 +442,10 @@ static irqreturn_t uio_interrupt(int irq, void *dev_id)
struct uio_device *idev = (struct uio_device *)dev_id;
irqreturn_t ret;
mutex_lock(&idev->info_lock);
ret = idev->info->handler(irq, idev->info);
if (ret == IRQ_HANDLED)
uio_event_notify(idev->info);
mutex_unlock(&idev->info_lock);
return ret;
}
@ -962,9 +959,8 @@ int __uio_register_device(struct module *owner,
* FDs at the time of unregister and therefore may not be
* freed until they are released.
*/
ret = request_threaded_irq(info->irq, NULL, uio_interrupt,
info->irq_flags, info->name, idev);
ret = request_irq(info->irq, uio_interrupt,
info->irq_flags, info->name, idev);
if (ret)
goto err_request_irq;
}