6.13-stable review patch. If anyone has any objections, please let me know.
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From: Zijun Hu quic_zijuhu@quicinc.com
[ Upstream commit f73780e772c06901e99b2ad114b7f0f3fbe73ad4 ]
parse_interrupt_map() will use uninitialized variable @imaplen if fails to get property 'interrupt-map'.
Fix by using the variable after successfully getting the property.
Fixes: e7985f43609c ("of: property: Fix fw_devlink handling of interrupt-map") Signed-off-by: Zijun Hu quic_zijuhu@quicinc.com Reviewed-by: Krzysztof Kozlowski krzk@kernel.org Link: https://lore.kernel.org/r/20250109-of_core_fix-v4-6-db8a72415b8c@quicinc.com Signed-off-by: Rob Herring (Arm) robh@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/of/property.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/of/property.c b/drivers/of/property.c index cfc8aea002e43..b0633f3589de8 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1390,9 +1390,9 @@ static struct device_node *parse_interrupt_map(struct device_node *np, addrcells = of_bus_n_addr_cells(np);
imap = of_get_property(np, "interrupt-map", &imaplen); - imaplen /= sizeof(*imap); if (!imap) return NULL; + imaplen /= sizeof(*imap);
imap_end = imap + imaplen;