Using DEFINE_DEBUGFS_ATTRIBUTE macro with debugfs_create_file_unsafe() function in place of the debugfs_create_file() function will make the file operation struct "reset" aware of the file's lifetime. Additional details here: https://lists.archive.carbon60.com/linux/kernel/2369498

Issue reported by Coccinelle script: scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci

Signed-off-by: Deepak R Varma mh12gx2825@gmail.com --- Please Note: This is a Outreachy project task patch.

drivers/gpu/drm/sti/sti_drv.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c index 3f54efa36098..18c6639e4dbf 100644 --- a/drivers/gpu/drm/sti/sti_drv.c +++ b/drivers/gpu/drm/sti/sti_drv.c @@ -68,8 +68,8 @@ static int sti_drm_fps_set(void *data, u64 val) return 0; }

-DEFINE_SIMPLE_ATTRIBUTE(sti_drm_fps_fops, - sti_drm_fps_get, sti_drm_fps_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(sti_drm_fps_fops, sti_drm_fps_get, + sti_drm_fps_set, "%llu\n");

static int sti_drm_fps_dbg_show(struct seq_file *s, void *data) { @@ -98,8 +98,8 @@ static void sti_drm_dbg_init(struct drm_minor *minor) ARRAY_SIZE(sti_drm_dbg_list), minor->debugfs_root, minor);

- debugfs_create_file("fps_show", S_IRUGO | S_IWUSR, minor->debugfs_root, - minor->dev, &sti_drm_fps_fops); + debugfs_create_file_unsafe("fps_show", S_IRUGO | S_IWUSR, minor->debugfs_root, + minor->dev, &sti_drm_fps_fops);

DRM_INFO("%s: debugfs installed\n", DRIVER_NAME); }