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| author | Carlo Caione <ccaione@baylibre.com> | 2026-07-27 10:36:59 +0200 |
|---|---|---|
| committer | Rob Herring (Arm) <robh@kernel.org> | 2026-07-28 10:34:37 -0500 |
| commit | bba13ad17b1a11b3f1ed9b3a5d556191d7755a59 (patch) | |
| tree | 5eaad320d900f44e28e197ea7fd70397fca73ba8 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | db3dbdfea1b8f38774419c5c2c14e4b81c48708d (diff) | |
of/address: Fix NULL bus dereference in of_pci_range_parser_one()
The bus matching rework made of_match_bus() return NULL for nodes with
ranges/dma-ranges but no local #address-cells. parser_init() stored that
NULL bus, and the range iterator later dereferenced it.
Reject such nodes in parser_init(), leaving an explicit empty
iterator for callers that ignore the init return, and make
of_dma_get_max_cpu_address() honour the init failure so a rejected node
cannot clamp the DMA limit.
Fixes: 64ee3cf096ac ("of/address: Rework bus matching to avoid warnings")
Cc: stable@vger.kernel.org
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Link: https://patch.msgid.link/20260727-of-range-parser-null-bus-v3-1-be01b708a4ce@baylibre.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions