linux-nv-oot

mirror of git://nv-tegra.nvidia.com/linux-nv-oot.git synced 2025-12-22 09:11:26 +03:00

jianjunm 84de937501 host1x-fence:Free the kzalloc mem

Issue: ioctl call host1x-fence cause memory leak
The kmemleak log shows:
  unreferenced object 0xffff0001ac305500 (size 128):
  comm "deepstream-test", pid 4370, jiffies 4295045195 (age 133.220s)
  hex dump (first 32 bytes):
    00 01 00 00 00 00 ad de 22 01 00 00 00 00 ad de  ........".......
    28 aa 67 bf 00 00 ff ff 00 7c ed 1f 01 00 ff ff  (.g......|......
  backtrace:
    [<000000000d2d94dc>] kmem_cache_alloc_trace+0x2bc/0x3d0
    [<000000006a957993>] dev_file_ioctl+0x588/0x86c [host1x_fence]
    [<000000003528f698>] __arm64_sys_ioctl+0xb4/0x100
    [<00000000d39dabe0>] invoke_syscall+0x5c/0x130
    [<00000000aee791e3>] el0_svc_common.constprop.0+0x64/0x110
    [<0000000050bcd11c>] do_el0_svc+0x74/0xa0
    [<00000000530f0cc4>] el0_svc+0x28/0x80
    [<00000000b6d076a3>] el0t_64_sync_handler+0xa4/0x130
    [<000000008943bb27>] el0t_64_sync+0x1a4/0x1a8

Fix: release the kzalloc memory after finish using

Bug 4738188

Change-Id: Ifeb316a2a52432f0199ad22d3de277b123acda24
Signed-off-by: jianjunm <jianjunm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3175899
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>

2024-07-23 05:39:06 -07:00