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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-19 19:30:44 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-19 19:30:44 +0300
commit1d0926e99de7b486321e3db924b445531eea5e18 (patch)
tree5c0b4d166b8182abd6eece4746f877a41d8156c3 /drivers/uio/uio.c
parent08b5fa819970c318e58ab638f497633c25971813 (diff)
parent3d27c4de8d4fb2d4099ff324671792aa2578c6f9 (diff)
downloadlinux-1d0926e99de7b486321e3db924b445531eea5e18.tar.xz
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"
Diffstat (limited to 'drivers/uio/uio.c')
-rw-r--r--drivers/uio/uio.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 15ad3469660d..70a7981b94b3 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -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;
}