It printed garbage from stack: [drm:drm_debugfs_create_files] *ERROR* Cannot create /sys/kernel/debug/dri/!.wy/2

Reported-by: Daniel Yek danieyek@alumni.washington.edu Signed-off-by: Marcin Slusarz marcin.slusarz@gmail.com Cc: stable@kernel.org --- drivers/gpu/drm/drm_debugfs.c | 3 +-- drivers/gpu/drm/drm_proc.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c index 9d8c892..b9dc262 100644 --- a/drivers/gpu/drm/drm_debugfs.c +++ b/drivers/gpu/drm/drm_debugfs.c @@ -90,7 +90,6 @@ int drm_debugfs_create_files(struct drm_info_list *files, int count, struct drm_device *dev = minor->dev; struct dentry *ent; struct drm_info_node *tmp; - char name[64]; int i, ret;

for (i = 0; i < count; i++) { @@ -109,7 +108,7 @@ int drm_debugfs_create_files(struct drm_info_list *files, int count, root, tmp, &drm_debugfs_fops); if (!ent) { DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/%s\n", - name, files[i].name); + root->d_name.name, files[i].name); kfree(tmp); ret = -1; goto fail; diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c index 9e5b07e..0f3c4e3 100644 --- a/drivers/gpu/drm/drm_proc.c +++ b/drivers/gpu/drm/drm_proc.c @@ -95,7 +95,6 @@ int drm_proc_create_files(struct drm_info_list *files, int count, struct drm_device *dev = minor->dev; struct proc_dir_entry *ent; struct drm_info_node *tmp; - char name[64]; int i, ret;

for (i = 0; i < count; i++) { @@ -118,7 +117,7 @@ int drm_proc_create_files(struct drm_info_list *files, int count, &drm_proc_fops, tmp); if (!ent) { DRM_ERROR("Cannot create /proc/dri/%s/%s\n", - name, files[i].name); + root->name, files[i].name); list_del(&tmp->list); kfree(tmp); ret = -1;