diff options
| author | Aaro Koskinen <aaro.koskinen@nsn.com> | 2013-12-20 16:19:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-20 08:49:17 -0800 |
| commit | 632fefaf1fff7c344191c363e08a43cf006fe60e (patch) | |
| tree | 7566daa4c206e48a40842044f586e77782233f6c | |
| parent | 65861ab458993511b0f908e4501436467a044743 (diff) | |
| download | lwn-632fefaf1fff7c344191c363e08a43cf006fe60e.tar.gz lwn-632fefaf1fff7c344191c363e08a43cf006fe60e.zip | |
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>
| -rw-r--r-- | drivers/uio/uio.c | 2 |
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; |