[PATCH AUTOSEL 6.18] drm/vc4: Fix memory leak of BO array in hang state

[Sasha Levin <sashal@kernel.org>]

From: Maíra Canal <mcanal@igalia.com>

[ Upstream commit f4dfd6847b3e5d24e336bca6057485116d17aea4 ]

The hang state's BO array is allocated separately with kzalloc() in
vc4_save_hang_state() but never freed in vc4_free_hang_state(). Add the
missing kfree() for the BO array before freeing the hang state struct.

Fixes: 214613656b51 ("drm/vc4: Add an interface for capturing the GPU state after a hang.")
Reviewed-by: Melissa Wen <mwen@igalia.com>
Link: https://patch.msgid.link/20260330-vc4-misc-fixes-v1-2-92defc940a29@igalia.com
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

LLM Generated explanations, may be completely bogus:

Error: Failed to generate final synthesis

 drivers/gpu/drm/vc4/vc4_gem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/vc4/vc4_gem.c b/drivers/gpu/drm/vc4/vc4_gem.c
index 255e5817618e3..6238630e46793 100644
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -61,6 +61,7 @@ vc4_free_hang_state(struct drm_device *dev, struct vc4_hang_state *state)
 	for (i = 0; i < state->user_state.bo_count; i++)
 		drm_gem_object_put(state->bo[i]);
 
+	kfree(state->bo);
 	kfree(state);
 }
 
-- 
2.53.0