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This change also does a bit of a unification for the IRQ init code. But the actual problem is that UIO_IRQ_NONE == 0, so for the DT case where UIO_IRQ_NONE gets assigned to `uioinfo->irq`, a 2nd initialization will get triggered (for the IRQ) and this one will exit via `goto bad1`. As far as things seem to go, the only case where UIO_IRQ_NONE seems valid, is when using a device-tree. The driver has some legacy support for old platform_data structures. It looks like, for platform_data a non-existent IRQ is an invalid case (or was considered an invalid case). Which is why -ENXIO is treated only when a DT is used. Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Acked-by: Damian Hobson-Garcia <dhobsong@igel.co.jp> Link: https://lore.kernel.org/r/20191105073212.16719-1-alexandru.ardelean@analog.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| uio_aec.c | ||
| uio_cif.c | ||
| uio_dmem_genirq.c | ||
| uio_fsl_elbc_gpcm.c | ||
| uio_hv_generic.c | ||
| uio_mf624.c | ||
| uio_netx.c | ||
| uio_pci_generic.c | ||
| uio_pdrv_genirq.c | ||
| uio_pruss.c | ||
| uio_sercos3.c | ||
| uio.c | ||