hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

synclink_gt fix module reference 

Get module reference on open() by generic HDLC to prevent module from
unloading while interface is active.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Paul Fulghum 2007-08-22 14:01:50 -07:00 committed by Linus Torvalds
parent 1807a1aaf5
commit d4c63b7c74
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/char/synclink_gt.c
View File

@ -1565,6 +1565,9 @@ static int hdlcdev_open(struct net_device *dev)
int rc;
unsigned long flags;
if (!try_module_get(THIS_MODULE))
return -EBUSY;
DBGINFO(("%s hdlcdev_open\n", dev->name));
/* generic HDLC layer open processing */
@ -1634,6 +1637,7 @@ static int hdlcdev_close(struct net_device *dev)
info->netcount=0;
spin_unlock_irqrestore(&info->netlock, flags);
module_put(THIS_MODULE);
return 0;
}