5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Aleksandr Aprelkov <aaprelkov@xxxxxxxxxxxx> [ Upstream commit 80fea979dd9d48d67c5b48d2f690c5da3e543ebd ] If devm_add_action() returns -ENOMEM, then MSIs are allocated but not not freed on teardown. Use devm_add_action_or_reset() instead to keep the static analyser happy. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Aleksandr Aprelkov <aaprelkov@xxxxxxxxxxxx> Link: https://lore.kernel.org/r/20240403053759.643164-1-aaprelkov@xxxxxxxxxxxx [will: Tweak commit message, remove warning message] Signed-off-by: Will Deacon <will@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 761cb657f2561..ec4c87095c6cd 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -3239,7 +3239,7 @@ static void arm_smmu_setup_msis(struct arm_smmu_device *smmu) } /* Add callback to free MSIs on teardown */ - devm_add_action(dev, arm_smmu_free_msis, dev); + devm_add_action_or_reset(dev, arm_smmu_free_msis, dev); } static void arm_smmu_setup_unique_irqs(struct arm_smmu_device *smmu) -- 2.43.0
