lkml.org 
[lkml]   [2017]   [Aug]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] drm/amdgpu: check memory allocation failure
Date
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

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 15d4a28d73bb..baa90df90aea 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -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])
--
2.11.0
\
 
 \ /
  Last update: 2017-08-23 08:02    [W:0.034 / U:0.264 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site