lib: small documentation fixes

Signed-off-by: Thomas Wood <thomas.wood@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/igt_gt.h b/lib/igt_gt.h
index f1e080d3..51054233 100644
--- a/lib/igt_gt.h
+++ b/lib/igt_gt.h
@@ -34,7 +34,7 @@ typedef struct igt_hang_ring {
 } igt_hang_ring_t;
 
 struct igt_hang_ring igt_hang_ring(int fd, int ring);
-void igt_post_hang_ring(int fd, struct igt_hang_ring data);
+void igt_post_hang_ring(int fd, struct igt_hang_ring arg);
 
 int igt_fork_hang_helper(void);
 void igt_stop_hang_helper(void);