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 <[email protected]>
---
Changes since V2:
*remove duplicate kobject_put in kfd_procfs_init.
Link for V1:
*https://lore.kernel.org/patchwork/patch/1258608/
---
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index d27221ddcdeb..0e0c42e9f6a3 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -428,6 +428,7 @@ struct kfd_process *kfd_create_process(struct file *filep)
(int)process->lead_thread->pid);
if (ret) {
pr_warn("Creating procfs pid directory failed");
+ kobject_put(process->kobj);
goto out;
}
--
2.17.1