Mark Brown f6933c01e4 of/address: Return an error when no valid dma-ranges are found ...

Commit 7a8b64d17e35 ("of/address: use range parser for of_dma_get_range")
converted the parsing of dma-range properties to use code shared with the
PCI range parser. The intent was to introduce no functional changes however
in the case where we fail to translate the first resource instead of
returning -EINVAL the new code we return 0. Restore the previous behaviour
by returning an error if we find no valid ranges, the original code only
handled the first range but subsequently support for parsing all supplied
ranges was added.

This avoids confusing code using the parsed ranges which doesn't expect to
successfully parse ranges but have only a list terminator returned, this
fixes breakage with so far as I can tell all DMA for on SoC devices on the
Socionext Synquacer platform which has a firmware supplied DT. A bisect
identified the original conversion as triggering the issues there.

Fixes: 7a8b64d17e35 ("of/address: use range parser for of_dma_get_range")
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Luca Di Stefano <luca.distefano@linaro.org>
Cc: 993612@bugs.debian.org
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20230126-synquacer-boot-v2-1-cb80fd23c4e2@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>

2023-02-02 17:10:58 -06:00

..

unittest-data

of: overlay: rename overlay source files from .dts to .dtso

2022-10-26 09:02:28 -05:00

address.c

of/address: Return an error when no valid dma-ranges are found

2023-02-02 17:10:58 -06:00

base.c

Devicetree updates for v6.1:

2022-10-10 13:13:51 -07:00

device.c

driver core: pass a const * into of_device_uevent()

2022-11-22 17:34:55 +01:00

dynamic.c

of: Add missing 'Return' section in kerneldoc comments

2021-03-27 12:59:03 -06:00

fdt_address.c

…

fdt.c

of: fdt: Honor CONFIG_CMDLINE* even without /chosen node, take 2

2023-01-04 21:31:59 -06:00

irq.c

of/irq: export of_msi_get_domain

2022-10-19 18:58:04 +05:30

Kconfig

of: net: move of_net under net/

2021-10-07 13:39:51 +01:00

kexec.c

of/kexec: Fix reading 32-bit "linux,initrd-{start,end}" values

2022-12-06 14:50:36 -06:00

kobj.c

of: kobj: make of_node_is_(initialized|attached) parameters const

2021-10-20 13:37:25 -05:00

Makefile

of: net: move of_net under net/

2021-10-07 13:39:51 +01:00

of_numa.c

of, numa: Fetch empty NUMA node ID from distance map

2021-10-04 13:13:44 -05:00

of_private.h

of: Fix "dma-ranges" handling for bus controllers

2022-09-30 14:35:43 -05:00

of_reserved_mem.c

of: reserved-memory: Print allocation/reservation failures as error

2022-06-28 14:15:36 -06:00

overlay.c

of: overlay: fix null pointer dereferencing in find_dup_cset_node_entry() and find_dup_cset_prop()

2022-12-11 19:00:36 -06:00

pdt.c

of: Remove struct device_node.type pointer

2019-01-10 16:24:44 -06:00

platform.c

of: Make OF framebuffer device names unique

2023-02-02 17:10:33 -06:00

property.c

of: property: decrement node refcount in of_fwnode_get_reference_args()

2022-11-22 17:22:52 -06:00

resolver.c

of: overlay: log the error cause on resolver failure

2020-03-02 11:32:44 -06:00

unittest.c

of: unittest: Convert to i2c's .probe_new()

2022-12-06 14:50:35 -06:00