I'm ok with not pushing my commit and simply adding an else branch that
sets the pointer to NULL.
(maybe put a WARN_ON to give context?)
Tom
On 17/10/17 04:42 PM, Andrey Grodzovsky wrote:
On 10/17/2017 04:12 PM, Nicolai Hähnle wrote:
On 17.10.2017 19:45, Tom St Denis wrote:
If the allocation fails in amdgpu_dm_connector_funcs_reset() the
API cannot continue so trigger a BUG_ON.
That seems questionable to be honest. The drm_atomic_helper version of
this function ends up setting connector->state = NULL; in this case.
I see it now, it will propagate back to user mode as -ENOMEM, so i guess
it's good just set it as NULL.
Thanks,
Andrey
Cheers,
Nicolai
Signed-off-by: Tom St Denis <[email protected]>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 58e29a2a5ca6..ac58ba4f10cf 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2722,6 +2722,7 @@ void amdgpu_dm_connector_funcs_reset(struct
drm_connector *connector)
kfree(state);
state = kzalloc(sizeof(*state), GFP_KERNEL);
+ BUG_ON(state == NULL);
if (state) {
state->scaling = RMX_OFF;
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