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authorAaro Koskinen <aaro.koskinen@nsn.com>2013-12-20 18:19:47 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-20 20:49:17 +0400
commit632fefaf1fff7c344191c363e08a43cf006fe60e (patch)
tree7566daa4c206e48a40842044f586e77782233f6c /drivers/uio
parent65861ab458993511b0f908e4501436467a044743 (diff)
downloadlinux-632fefaf1fff7c344191c363e08a43cf006fe60e.tar.xz
uio: fix devm_request_irq usage
Commit e6789cd3dfb553077606ccafeb05e0043f072481 (uio: Simplify uio error path by using devres functions) converted uio to use devm_request_irq(). This introduced a change in behaviour since the IRQ is associated with the parent device instead of the created UIO device. The IRQ will remain active after uio_unregister_device() is called, and some drivers will crash because of this. The patch fixes this. Signed-off-by: Aaro Koskinen <aaro.koskinen@nsn.com> Cc: stable <stable@vger.kernel.org> # 3.13 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uio')
-rw-r--r--drivers/uio/uio.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index f7beb6eb40c7..a673e5b6a2e0 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -847,7 +847,7 @@ int __uio_register_device(struct module *owner,
info->uio_dev = idev;
if (info->irq && (info->irq != UIO_IRQ_CUSTOM)) {
- ret = devm_request_irq(parent, info->irq, uio_interrupt,
+ ret = devm_request_irq(idev->dev, info->irq, uio_interrupt,
info->irq_flags, info->name, idev);
if (ret)
goto err_request_irq;