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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2010-01-17 19:31:45 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2010-02-17 17:48:24 +0100 |
| commit | cfe5d809518eda3d5e2da87c5ccbe8647143573a (patch) | |
| tree | dd61ec285412fc0de8090ef5743b824447a9eeda /drivers/pcmcia/cs.c | |
| parent | 3f565232c561fbd9d5e03354aac29b90cb2bc78a (diff) | |
| download | lwn-cfe5d809518eda3d5e2da87c5ccbe8647143573a.tar.gz lwn-cfe5d809518eda3d5e2da87c5ccbe8647143573a.zip | |
pcmcia: use ops_mutex for rsrc_{mgr,nonstatic} locking
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/pcmcia/cs.c')
| -rw-r--r-- | drivers/pcmcia/cs.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c index 13277eebe46a..7ba45b0cca6b 100644 --- a/drivers/pcmcia/cs.c +++ b/drivers/pcmcia/cs.c @@ -224,7 +224,9 @@ int pcmcia_register_socket(struct pcmcia_socket *socket) spin_lock_init(&socket->thread_lock); if (socket->resource_ops->init) { + mutex_lock(&socket->ops_mutex); ret = socket->resource_ops->init(socket); + mutex_unlock(&socket->ops_mutex); if (ret) goto err; } @@ -282,8 +284,11 @@ void pcmcia_unregister_socket(struct pcmcia_socket *socket) up_write(&pcmcia_socket_list_rwsem); /* wait for sysfs to drop all references */ - if (socket->resource_ops->exit) + if (socket->resource_ops->exit) { + mutex_lock(&socket->ops_mutex); socket->resource_ops->exit(socket); + mutex_unlock(&socket->ops_mutex); + } wait_for_completion(&socket->socket_released); } /* pcmcia_unregister_socket */ EXPORT_SYMBOL(pcmcia_unregister_socket); |