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Commit a1d6b190 authored by Christophe JAILLET's avatar Christophe JAILLET Committed by Alex Deucher
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drm/amdgpu: check memory allocation failure 



Check memory allocation failure and return -ENOMEM in such a case.

'num_post_dep_syncobjs' still has to be set to 0 before the test in order
to have it initialized if 'amdgpu_cs_parser_fini()' is called to free
resources.

The calling graph would be, in such a case!
   failure in amdgpu_cs_process_syncobj_out_dep()
      ---> error code returned by amdgpu_cs_dependencies()
         --> amdgpu_cs_parser_fini() is called

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 2959a534

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

+3 −0
Original line number Diff line number Diff line
@@ -1079,6 +1079,9 @@ static int amdgpu_cs_process_syncobj_out_dep(struct amdgpu_cs_parser *p, 
					     GFP_KERNEL);

	p->num_post_dep_syncobjs = 0;



	if (!p->post_dep_syncobjs)

		return -ENOMEM;



	for (i = 0; i < num_deps; ++i) {

		p->post_dep_syncobjs[i] = drm_syncobj_find(p->filp, deps[i].handle);

		if (!p->post_dep_syncobjs[i])