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drm/amd: fix potential memleak in err branch 

The function kobject_init_and_add alloc memory like:
kobject_init_and_add->kobject_add_varg->kobject_set_name_vargs
->kvasprintf_const->kstrdup_const->kstrdup->kmalloc_track_caller
->kmalloc_slab, in err branch this memory not free. If use
kmemleak, this path maybe catched.
These changes are to add kobject_put in kobject_init_and_add
failed branch, fix potential memleak.

Signed-off-by: Bernard Zhao <bernard@vivo.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Bernard Zhao 2020-06-20 17:11:52 +08:00 committed by Alex Deucher
parent fa7041d9d2
commit b5b78a6c8d
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdkfd/kfd_process.c
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@ -428,6 +428,7 @@ struct kfd_process *kfd_create_process(struct file *filep)
(int)process->lead_thread->pid); (int)process->lead_thread->pid);
if (ret) { if (ret) {
pr_warn("Creating procfs pid directory failed"); pr_warn("Creating procfs pid directory failed");
kobject_put(process->kobj);
goto out; goto out;
} }