6.6-stable review patch. If anyone has any objections, please let me know.
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From: Sunil V L sunilvl@ventanamicro.com
[ Upstream commit 0110c4b110477bb1f19b0d02361846be7ab08300 ]
When riscv_intc_init_common() fails, the firmware node allocated is not freed. Add the missing free().
Fixes: 7023b9d83f03 ("irqchip/riscv-intc: Add ACPI support") Signed-off-by: Sunil V L sunilvl@ventanamicro.com Signed-off-by: Thomas Gleixner tglx@linutronix.de Reviewed-by: Anup Patel anup@brainfault.org Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20240527081113.616189-1-sunilvl@ventanamicro.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/irqchip/irq-riscv-intc.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-riscv-intc.c b/drivers/irqchip/irq-riscv-intc.c index 0cd6b48a5dbf9..627beae9649a2 100644 --- a/drivers/irqchip/irq-riscv-intc.c +++ b/drivers/irqchip/irq-riscv-intc.c @@ -232,8 +232,9 @@ IRQCHIP_DECLARE(andes, "andestech,cpu-intc", riscv_intc_init); static int __init riscv_intc_acpi_init(union acpi_subtable_headers *header, const unsigned long end) { - struct fwnode_handle *fn; struct acpi_madt_rintc *rintc; + struct fwnode_handle *fn; + int rc;
rintc = (struct acpi_madt_rintc *)header;
@@ -252,7 +253,11 @@ static int __init riscv_intc_acpi_init(union acpi_subtable_headers *header, return -ENOMEM; }
- return riscv_intc_init_common(fn, &riscv_intc_chip); + rc = riscv_intc_init_common(fn, &riscv_intc_chip); + if (rc) + irq_domain_free_fwnode(fn); + + return rc; }
IRQCHIP_ACPI_DECLARE(riscv_intc, ACPI_MADT_TYPE_RINTC, NULL,