drivers/perf: arm_pmu: Fix leak in error path

In case of a IRQ type mismatch in of_pmu_irq_cfg() the
device node for interrupt affinity isn't freed. So fix this
issue by calling of_node_put().

Signed-off-by: Stefan Wahren <[email protected]>
Fixes: fa8ad7889d83 ("arm: perf: factor arm_pmu core out to drivers")
Signed-off-by: Will Deacon <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>

diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index c494613c1909e16b88f06c0270bee1425239e5f3..1b48bf0a6780bd758397d720c71fbc22cc92726d 100644 (file)
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -925,6 +925,7 @@ static int of_pmu_irq_cfg(struct arm_pmu *pmu)
                        if (i > 0 && spi != using_spi) {
                                pr_err("PPI/SPI IRQ type mismatch for %s!\n",
                                        dn->name);
+                               of_node_put(dn);
                                kfree(irqs);
                                return -EINVAL;
                        }