Alexandru Ardelean 3ec1bd7693 uio: fix irq init with dt support & irq not defined ...

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>

2019-11-14 11:49:48 +08:00

..

Kconfig

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21 10:50:46 +02:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

uio_aec.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333

2019-06-05 17:37:06 +02:00

uio_cif.c

uio: add SPDX license tags

2018-07-21 15:41:20 +02:00

uio_dmem_genirq.c

uio: fix irq init with dt support & irq not defined

2019-11-14 11:49:48 +08:00

uio_fsl_elbc_gpcm.c

uio: uio_fsl_elbc_gpcm: convert platform driver to use dev_groups

2019-08-02 12:56:51 +02:00

uio_hv_generic.c

uio_hv_generic: set callbacks on open

2018-12-11 14:23:17 +01:00

uio_mf624.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61

2019-05-24 17:36:45 +02:00

uio_netx.c

uio: add SPDX license tags

2018-07-21 15:41:20 +02:00

uio_pci_generic.c

uio/uio_pci_generic: Disable bus-mastering on release

2019-01-31 16:22:51 +01:00

uio_pdrv_genirq.c

uio: uio_pdrv_genirq: Make UIO name controllable via DT node property

2019-09-04 13:42:43 +02:00

uio_pruss.c

uio: pruss: fix error handling in probe

2018-08-02 10:14:26 +02:00

uio_sercos3.c

uio: add SPDX license tags

2018-07-21 15:41:20 +02:00

uio.c

driver: uio: fix possible use-after-free in __uio_register_device

2019-01-31 16:36:52 +01:00