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| author | Esben Haabendal <esben@geanix.com> | 2020-07-01 16:56:58 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-03 10:52:02 +0200 |
| commit | bf12fdf0ab728ca8e5933aac46dd972c0dd0421e (patch) | |
| tree | 5394be538f459e8a149c7b5148391188694cb6de /drivers/uio | |
| parent | 324ac45f25e634eca6346953ae531e8da3e0c73d (diff) | |
| download | lwn-bf12fdf0ab728ca8e5933aac46dd972c0dd0421e.tar.gz lwn-bf12fdf0ab728ca8e5933aac46dd972c0dd0421e.zip | |
uio_pdrv_genirq: fix use without device tree and no interrupt
While e3a3c3a20555 ("UIO: fix uio_pdrv_genirq with device tree but no
interrupt") added support for using uio_pdrv_genirq for devices without
interrupt for device tree platforms, the removal of uio_pdrv in
26dac3c49d56 ("uio: Remove uio_pdrv and use uio_pdrv_genirq instead")
broke the support for non device tree platforms.
This change fixes this, so that uio_pdrv_genirq can be used without
interrupt on all platforms.
This still leaves the support that uio_pdrv had for custom interrupt
handler lacking, as uio_pdrv_genirq does not handle it (yet).
Fixes: 26dac3c49d56 ("uio: Remove uio_pdrv and use uio_pdrv_genirq instead")
Signed-off-by: Esben Haabendal <esben@geanix.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200701145659.3978-3-esben@geanix.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uio')
| -rw-r--r-- | drivers/uio/uio_pdrv_genirq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c index 1d69dd49c6d2..b60173bc93ce 100644 --- a/drivers/uio/uio_pdrv_genirq.c +++ b/drivers/uio/uio_pdrv_genirq.c @@ -161,7 +161,7 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev) if (!uioinfo->irq) { ret = platform_get_irq_optional(pdev, 0); uioinfo->irq = ret; - if (ret == -ENXIO && pdev->dev.of_node) + if (ret == -ENXIO) uioinfo->irq = UIO_IRQ_NONE; else if (ret == -EPROBE_DEFER) return ret; |