6.12-stable review patch. If anyone has any objections, please let me know.
------------------ From: Thomas Zimmermann <[email protected]> commit 7cce65f3789e04c0f7668a66563e680d81d54493 upstream. The ast driver protects the commit tail against concurrent reads of the display modes by acquiring a lock. The comment is misleading as the lock is not released in atomic_flush, but at the end of the commit-tail helper. Rewrite the comment. Signed-off-by: Thomas Zimmermann <[email protected]> Fixes: 1fe182154984 ("drm/ast: Acquire I/O-register lock in atomic_commit_tail function") Cc: Thomas Zimmermann <[email protected]> Cc: Jocelyn Falempe <[email protected]> Cc: Dave Airlie <[email protected]> Cc: [email protected] Cc: <[email protected]> # v6.2+ Reviewed-by: Jocelyn Falempe <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/gpu/drm/ast/ast_mode.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -1319,9 +1319,9 @@ static void ast_mode_config_helper_atomi /* * Concurrent operations could possibly trigger a call to - * drm_connector_helper_funcs.get_modes by trying to read the - * display modes. Protect access to I/O registers by acquiring - * the I/O-register lock. Released in atomic_flush(). + * drm_connector_helper_funcs.get_modes by reading the display + * modes. Protect access to registers by acquiring the modeset + * lock. */ mutex_lock(&ast->modeset_lock); drm_atomic_helper_commit_tail(state);
