diff mbox series

[2/2] drm/tegra: Zero-initialize iosys_map

Message ID 20230901115910.701518-2-cyndis@kapsi.fi
State Accepted
Headers show
Series [1/2] gpu: host1x: Correct allocated size for contexts | expand

Commit Message

Mikko Perttunen Sept. 1, 2023, 11:59 a.m. UTC 
From: Mikko Perttunen <mperttunen@nvidia.com>

UBSAN reports an invalid load for bool, as the iosys_map is read
later without being initialized. Zero-initialize it to avoid this.

Reported-by: Ashish Mhetre <amhetre@nvidia.com>
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
---
 drivers/gpu/drm/tegra/gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index a4023163493d..346f70edfb15 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -177,7 +177,7 @@  static void tegra_bo_unpin(struct host1x_bo_mapping *map)
 static void *tegra_bo_mmap(struct host1x_bo *bo)
 {
 	struct tegra_bo *obj = host1x_to_tegra_bo(bo);
-	struct iosys_map map;
+	struct iosys_map map = {0};
 	int ret;
 
 	if (obj->vaddr) {