tree c2ce4184b9f3cfcf79d2db634a63ba188f2fcb30
parent 7af3eef5648dd163f60e05f4409a9fb050cbf9e7
author Prakash Gupta <guptap@codeaurora.org> 1532680786 +0530
committer Prakash Gupta <guptap@codeaurora.org> 1532682075 +0530

iommu: arm-smmu: fix device remove cleanup

smmu devices are added to arm_smmu_devices list during device probe. This
needs to be cleaned up during device remove. In absence of that we can see
list corruption.

register_client_adhoc:Client handle 1 apps_smmu
list_add corruption. next->prev should be prev (ffffff8ee36ed1e8), but was
6b6b6b6b6b6b6b6b. (next=ffffffdf7004a590).
PC is at __list_add+0xd8/0xe0
LR is at __list_add+0xd8/0xe0
__list_add+0xd8/0xe0
arm_smmu_device_dt_probe+0x334/0x1290
platform_drv_probe+0x58/0xd0
driver_probe_device+0x254/0x438
bind_store+0x168/0x1c4
drv_attr_store+0x48/0x5c
sysfs_kf_write+0x5c/0x74
[...]

CRs-Fixed: 2262423
Change-Id: I48dedc44e427f061af86e994756a3e95afdb3ac5
Signed-off-by: Prakash Gupta <guptap@codeaurora.org>