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authorDaniel J Blueman <daniel@quora.org>2018-04-02 15:10:35 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-04-29 11:31:55 +0200
commit5ddab9f7be78b36ded2a7a93d45642dff46fd409 (patch)
tree6b1a30e37a5af53166df5dde7cda3d1f1fa962cb
parent01eabcde1be5b9d0d88e98d67a97589b275a8ba6 (diff)
drm/vc4: Fix memory leak during BO teardown
commit c0db1b677e1d584fab5d7ac76a32e1c0157542e0 upstream. During BO teardown, an indirect list 'uniform_addr_offsets' wasn't being freed leading to leaking many 128B allocations. Fix the memory leak by releasing it at teardown time. Cc: stable@vger.kernel.org Fixes: 6d45c81d229d ("drm/vc4: Add support for branching in shader validation.") Signed-off-by: Daniel J Blueman <daniel@quora.org> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20180402071035.25356-1-daniel@quora.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/gpu/drm/vc4/vc4_bo.c2
-rw-r--r--drivers/gpu/drm/vc4/vc4_validate_shaders.c1
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
index ec9023bd935b..d53e805d392f 100644
--- a/drivers/gpu/drm/vc4/vc4_bo.c
+++ b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -80,6 +80,7 @@ static void vc4_bo_destroy(struct vc4_bo *bo)
struct vc4_dev *vc4 = to_vc4_dev(obj->dev);
if (bo->validated_shader) {
+ kfree(bo->validated_shader->uniform_addr_offsets);
kfree(bo->validated_shader->texture_samples);
kfree(bo->validated_shader);
bo->validated_shader = NULL;
@@ -328,6 +329,7 @@ void vc4_free_object(struct drm_gem_object *gem_bo)
}
if (bo->validated_shader) {
+ kfree(bo->validated_shader->uniform_addr_offsets);
kfree(bo->validated_shader->texture_samples);
kfree(bo->validated_shader);
bo->validated_shader = NULL;
diff --git a/drivers/gpu/drm/vc4/vc4_validate_shaders.c b/drivers/gpu/drm/vc4/vc4_validate_shaders.c
index 917321ce832f..19a5bde8e490 100644
--- a/drivers/gpu/drm/vc4/vc4_validate_shaders.c
+++ b/drivers/gpu/drm/vc4/vc4_validate_shaders.c
@@ -874,6 +874,7 @@ vc4_validate_shader(struct drm_gem_cma_object *shader_obj)
fail:
kfree(validation_state.branch_targets);
if (validated_shader) {
+ kfree(validated_shader->uniform_addr_offsets);
kfree(validated_shader->texture_samples);
kfree(validated_shader);
}