diff --git a/drivers/staging/android/debug_kinfo.c b/drivers/staging/android/debug_kinfo.c
index 3d52f7be9376..6d7bb750555c 100644
--- a/drivers/staging/android/debug_kinfo.c
+++ b/drivers/staging/android/debug_kinfo.c
@@ -128,7 +128,7 @@ static int debug_kinfo_probe(struct platform_device *pdev)
 	all_info_addr = rmem->priv;
 	all_info_size = rmem->size;
 
-	memset(all_info_addr, 0, all_info_size);
+	memset(all_info_addr, 0, sizeof(struct kernel_all_info));
 	all_info = (struct kernel_all_info *)all_info_addr;
 	info = &(all_info->info);
 	info->enabled_all = IS_ENABLED(CONFIG_KALLSYMS_ALL);