From 8daedea656ef48d36d1bda3d1339da484387c710 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 31 Jul 2007 00:37:43 -0700 Subject: [PATCH] parport_pc locking fix http://bugzilla.kernel.org/show_bug.cgi?id=8821 reports a might_sleep() warning due to parport_pc_exit() running platform_device_unregister() while holding ports_lock. Just remove the locking: nobody else can access ports_list during module_exit. Cc: "Mike Sharkey" Cc: Tim Waugh Cc: Stas Sergeev Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/parport/parport_pc.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index 5d58ad55d85c..e2be84001105 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -3445,7 +3445,6 @@ static void __exit parport_pc_exit(void) pnp_unregister_driver (&parport_pc_pnp_driver); platform_driver_unregister(&parport_pc_platform_driver); - spin_lock(&ports_lock); while (!list_empty(&ports_list)) { struct parport_pc_private *priv; struct parport *port; @@ -3455,11 +3454,8 @@ static void __exit parport_pc_exit(void) if (port->dev && port->dev->bus == &platform_bus_type) platform_device_unregister( to_platform_device(port->dev)); - spin_unlock(&ports_lock); parport_pc_unregister_port(port); - spin_lock(&ports_lock); } - spin_unlock(&ports_lock); } MODULE_AUTHOR("Phil Blundell, Tim Waugh, others"); -- GitLab