summaryrefslogtreecommitdiffstats
path: root/net/vmw_vsock/af_vsock.c
diff options
context:
space:
mode:
authorWill Deacon <will.deacon@arm.com>2014-05-28 19:29:23 +0200
committerWill Deacon <will.deacon@arm.com>2014-05-28 19:29:23 +0200
commit2eb8b396dc6ecf797925cc6bad4c0c6dfbdf4d44 (patch)
treede062b67715e1eb0321032ad2a87f12cb664643b /net/vmw_vsock/af_vsock.c
parentarm64: Fix linker script entry point (diff)
parentftrace: Make CALLER_ADDRx macros more generic (diff)
downloadlinux-2eb8b396dc6ecf797925cc6bad4c0c6dfbdf4d44.tar.xz
linux-2eb8b396dc6ecf797925cc6bad4c0c6dfbdf4d44.zip
Merge branch 'ftrace/arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into for-next/core
Core ftrace changes from Steve Rostedt, required by the arm64 support code.
Diffstat (limited to 'net/vmw_vsock/af_vsock.c')
-rw-r--r--net/vmw_vsock/af_vsock.c47
1 files changed, 22 insertions, 25 deletions
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 5adfd94c5b85..85d232bed87d 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1925,9 +1925,23 @@ static struct miscdevice vsock_device = {
.fops = &vsock_device_ops,
};
-static int __vsock_core_init(void)
+int __vsock_core_init(const struct vsock_transport *t, struct module *owner)
{
- int err;
+ int err = mutex_lock_interruptible(&vsock_register_mutex);
+
+ if (err)
+ return err;
+
+ if (transport) {
+ err = -EBUSY;
+ goto err_busy;
+ }
+
+ /* Transport must be the owner of the protocol so that it can't
+ * unload while there are open sockets.
+ */
+ vsock_proto.owner = owner;
+ transport = t;
vsock_init_tables();
@@ -1951,36 +1965,19 @@ static int __vsock_core_init(void)
goto err_unregister_proto;
}
+ mutex_unlock(&vsock_register_mutex);
return 0;
err_unregister_proto:
proto_unregister(&vsock_proto);
err_misc_deregister:
misc_deregister(&vsock_device);
- return err;
-}
-
-int vsock_core_init(const struct vsock_transport *t)
-{
- int retval = mutex_lock_interruptible(&vsock_register_mutex);
- if (retval)
- return retval;
-
- if (transport) {
- retval = -EBUSY;
- goto out;
- }
-
- transport = t;
- retval = __vsock_core_init();
- if (retval)
- transport = NULL;
-
-out:
+ transport = NULL;
+err_busy:
mutex_unlock(&vsock_register_mutex);
- return retval;
+ return err;
}
-EXPORT_SYMBOL_GPL(vsock_core_init);
+EXPORT_SYMBOL_GPL(__vsock_core_init);
void vsock_core_exit(void)
{
@@ -2000,5 +1997,5 @@ EXPORT_SYMBOL_GPL(vsock_core_exit);
MODULE_AUTHOR("VMware, Inc.");
MODULE_DESCRIPTION("VMware Virtual Socket Family");
-MODULE_VERSION("1.0.0.0-k");
+MODULE_VERSION("1.0.1.0-k");
MODULE_LICENSE("GPL v2");