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vfio: platform: Switch to platform_get_irq_optional()

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Since commit 7723f4c5ecdb ("driver core: platform: Add an error
message to platform_get_irq*()"), platform_get_irq() calls dev_err()
on an error. As we enumerate all interrupts until platform_get_irq()
fails, we now systematically get a message such as:
"vfio-platform fff51000.ethernet: IRQ index 3 not found" which is
a false positive.

Let's use platform_get_irq_optional() instead.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Cc: stable@vger.kernel.org # v5.3+
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Eric Auger 2020-03-24 09:26:30 -06:00 committed by Alex Williamson
parent 16fbf79b0f
commit 723fe298ad
1 changed files with 1 additions and 1 deletions
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2
drivers/vfio/platform/vfio_platform.c
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@ -44,7 +44,7 @@ static int get_platform_irq(struct vfio_platform_device *vdev, int i)
{
struct platform_device *pdev = (struct platform_device *) vdev->opaque;
return platform_get_irq(pdev, i);
return platform_get_irq_optional(pdev, i);
}
static int vfio_platform_probe(struct platform_device *pdev)