This is a note to let you know that I've just added the patch titled uio_pdrv_genirq: fix use without device tree and no interrupt to the 5.7-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: uio_pdrv_genirq-fix-use-without-device-tree-and-no-interrupt.patch and it can be found in the queue-5.7 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From bf12fdf0ab728ca8e5933aac46dd972c0dd0421e Mon Sep 17 00:00:00 2001 From: Esben Haabendal <esben@xxxxxxxxxx> Date: Wed, 1 Jul 2020 16:56:58 +0200 Subject: uio_pdrv_genirq: fix use without device tree and no interrupt From: Esben Haabendal <esben@xxxxxxxxxx> commit bf12fdf0ab728ca8e5933aac46dd972c0dd0421e upstream. 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@xxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Link: https://lore.kernel.org/r/20200701145659.3978-3-esben@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/uio/uio_pdrv_genirq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- 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 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; Patches currently in stable-queue which might be from esben@xxxxxxxxxx are queue-5.7/uio_pdrv_genirq-fix-use-without-device-tree-and-no-interrupt.patch queue-5.7/uio_pdrv_genirq-remove-warning-when-irq-is-not-specified.patch