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authorJohannes Thumshirn <jthumshirn@suse.de>2015-07-08 17:16:49 +0200
committerDavid S. Miller <davem@davemloft.net>2015-07-09 00:04:16 -0700
commitd5de1987853a7778bb048a9e52b3486eb9aceb17 (patch)
treef0f505b3976010928763d2c66b3a4e9f923d314b /drivers/net/macvtap.c
parentace15bbb39d7cdfa1f376badbc7e0633eed7d899 (diff)
downloadlinux-d5de1987853a7778bb048a9e52b3486eb9aceb17.tar.bz2
macvtap: Destroy minor_idr on module_exit
Destroy minor_idr on module_exit, reclaiming the allocated memory. This was detected by the following semantic patch (written by Luis Rodriguez <mcgrof@suse.com>) <SmPL> @ defines_module_init @ declarer name module_init, module_exit; declarer name DEFINE_IDR; identifier init; @@ module_init(init); @ defines_module_exit @ identifier exit; @@ module_exit(exit); @ declares_idr depends on defines_module_init && defines_module_exit @ identifier idr; @@ DEFINE_IDR(idr); @ on_exit_calls_destroy depends on declares_idr && defines_module_exit @ identifier declares_idr.idr, defines_module_exit.exit; @@ exit(void) { ... idr_destroy(&idr); ... } @ missing_module_idr_destroy depends on declares_idr && defines_module_exit && !on_exit_calls_destroy @ identifier declares_idr.idr, defines_module_exit.exit; @@ exit(void) { ... +idr_destroy(&idr); } </SmPL> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/macvtap.c')
-rw-r--r--drivers/net/macvtap.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 6a64197f5bce..b4b61910f616 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -1294,6 +1294,7 @@ static void macvtap_exit(void)
class_unregister(macvtap_class);
cdev_del(&macvtap_cdev);
unregister_chrdev_region(macvtap_major, MACVTAP_NUM_DEVS);
+ idr_destroy(&minor_idr);
}
module_exit(macvtap_exit);