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| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2008-12-14 19:19:23 +0100 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2009-03-24 20:56:38 +0100 |
| commit | 97811e347310766030a648fdf0e407b2c91a39c1 (patch) | |
| tree | 61710722bac7ffd91915e09f42e0412727bba53b /drivers/firewire | |
| parent | 1f3125af8ed7410cc0ebcc0acd59bbfc1ae0057a (diff) | |
| download | linux-97811e347310766030a648fdf0e407b2c91a39c1.tar.gz linux-97811e347310766030a648fdf0e407b2c91a39c1.tar.bz2 linux-97811e347310766030a648fdf0e407b2c91a39c1.zip | |
firewire: cdev: fix race of fw_device_op_release with bus reset
Unlink the client from the fw_device earlier in order to prevent bus
reset events being added to client->event_list during shutdown.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/firewire')
| -rw-r--r-- | drivers/firewire/fw-cdev.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c index a320ab48edd6..4dd66c1a36da 100644 --- a/drivers/firewire/fw-cdev.c +++ b/drivers/firewire/fw-cdev.c @@ -1009,6 +1009,10 @@ static int fw_device_op_release(struct inode *inode, struct file *file) struct event *e, *next_e; struct client_resource *r, *next_r; + mutex_lock(&client->device->client_list_mutex); + list_del(&client->link); + mutex_unlock(&client->device->client_list_mutex); + if (client->buffer.pages) fw_iso_buffer_destroy(&client->buffer, client->device->card); @@ -1026,10 +1030,6 @@ static int fw_device_op_release(struct inode *inode, struct file *file) list_for_each_entry_safe(e, next_e, &client->event_list, link) kfree(e); - mutex_lock(&client->device->client_list_mutex); - list_del(&client->link); - mutex_unlock(&client->device->client_list_mutex); - fw_device_put(client->device); kfree(client); |