diff options
| author | Aaro Koskinen <aaro.koskinen@nsn.com> | 2013-12-20 16:19:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-06 11:34:00 -0800 |
| commit | a51cc29a07dc2589fc4758492a19232c82913bc4 (patch) | |
| tree | e0325fc140faf1fca20d3ab8c6c2caf05541ef1a /drivers/uio | |
| parent | 6c84d406c04505f220158ef50479d392a562d96c (diff) | |
uio: fix devm_request_irq usage
commit 632fefaf1fff7c344191c363e08a43cf006fe60e upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uio')
| -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 f7beb6eb40c..a673e5b6a2e 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; |