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| author | Andrew Morton <akpm@linux-foundation.org> | 2007-07-31 00:37:43 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-31 15:39:37 -0700 |
| commit | 8daedea656ef48d36d1bda3d1339da484387c710 (patch) | |
| tree | 3cc3d1048430815042e7336929c8ebfee6cd5a81 | |
| parent | c21b37f6449a3d799c7e75e978391674ee207600 (diff) | |
| download | blackbird-op-linux-8daedea656ef48d36d1bda3d1339da484387c710.tar.gz blackbird-op-linux-8daedea656ef48d36d1bda3d1339da484387c710.zip | |
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" <mike@pikeaero.com>
Cc: Tim Waugh <tim@cyberelk.net>
Cc: Stas Sergeev <stsp@aknet.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/parport/parport_pc.c | 4 |
1 files changed, 0 insertions, 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"); |
