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

Assert topology is held in g_dev_getprovider().

Browse Source 
Don't call devsw().  It is not necessary, and we do not need to hold dev_lock
to compare the devsw pointer to our own since we do not dereference it.
This commit is contained in:
Poul-Henning Kamp 2004-09-24 06:43:20 +00:00
parent f69f5fbd42
commit a7830346e2
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sys/geom/geom_dev.c
View File

@ -99,11 +99,13 @@ g_dev_getprovider(struct cdev *dev)
{
struct g_consumer *cp;
g_topology_assert();
if (dev == NULL)
return (NULL);
if (devsw(dev) != &g_dev_cdevsw)
return (NULL);
cp = dev->si_drv2;
if (dev->si_devsw != &g_dev_cdevsw)
cp = NULL;
else
cp = dev->si_drv2;
return (cp->provider);
}