diff options
| author | Xiyu Yang <xiyuyang19@fudan.edu.cn> | 2021-06-10 10:49:20 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-20 16:05:43 +0200 |
| commit | 43d1aaa1965f9b58035196dac49b1e1e6c9c25eb (patch) | |
| tree | d7b72f4d6fba958e65b7371959b224dd818a2e45 /sound/soc | |
| parent | c4007596fbdabc29f858dc2e1990858a146b60b2 (diff) | |
iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation
[ Upstream commit 7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554 ]
The reference counting issue happens in several exception handling paths
of arm_smmu_iova_to_phys_hard(). When those error scenarios occur, the
function forgets to decrease the refcount of "smmu" increased by
arm_smmu_rpm_get(), causing a refcount leak.
Fix this issue by jumping to "out" label when those error scenarios
occur.
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/1623293391-17261-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound/soc')
0 files changed, 0 insertions, 0 deletions