d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Take a reference to make sure that the interface cannot go away during

Browse Source 
if_clone_destroy() in case parallel threads try to.

PR:		kern/116837
Submitted by:	Mikolaj Golub (to.my.trociny gmail.com)
MFC after:	10 days
This commit is contained in:
Bjoern A. Zeeb 2010-04-11 18:47:38 +00:00
parent 37ba5a9b14
commit d0088cde62
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=206488
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sys/net/if_clone.c
View File

@ -196,10 +196,11 @@ if_clone_createif(struct if_clone *ifc, char *name, size_t len, caddr_t params)
int
if_clone_destroy(const char *name)
{
int err;
struct if_clone *ifc;
struct ifnet *ifp;
ifp = ifunit(name);
ifp = ifunit_ref(name);
if (ifp == NULL)
return (ENXIO);
@ -221,10 +222,14 @@ if_clone_destroy(const char *name)
}
#endif
IF_CLONERS_UNLOCK();
if (ifc == NULL)
if (ifc == NULL) {
if_rele(ifp);
return (EINVAL);
}
return (if_clone_destroyif(ifc, ifp));
err = if_clone_destroyif(ifc, ifp);
if_rele(ifp);
return err;
}
/*