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authorTakashi Iwai <tiwai@suse.de>2021-07-14 19:00:21 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-08-08 08:37:47 +0200
commitac5008a0bec99f741c4d78ad3b8eaf660c239fa7 (patch)
tree2d607f336ca11431d1ddfae1b3104b2506ba590e /drivers/net/usb/r8152.c
parent225f3feda296883f97bc76e593892a605faab31f (diff)
r8152: Fix potential PM refcount imbalance
[ Upstream commit 9c23aa51477a37f8b56c3c40192248db0663c196 ] rtl8152_close() takes the refcount via usb_autopm_get_interface() but it doesn't release when RTL8152_UNPLUG test hits. This may lead to the imbalance of PM refcount. This patch addresses it. Link: https://bugzilla.suse.com/show_bug.cgi?id=1186194 Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/usb/r8152.c')
-rw-r--r--drivers/net/usb/r8152.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 5baaa8291624..ebf6d4cf09ea 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -3159,9 +3159,10 @@ static int rtl8152_close(struct net_device *netdev)
tp->rtl_ops.down(tp);
mutex_unlock(&tp->control);
+ }
+ if (!res)
usb_autopm_put_interface(tp->intf);
- }
free_all_mem(tp);