yam: fix a memory leak in yam_siocdevprivate()

[ Upstream commit 29eb31542787e1019208a2e1047bb7c76c069536 ]

ym needs to be free when ym->cmd != SIOCYAMSMCS.

Fixes: 0781168e23a2 ("yam: fix a missing-check bug")
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 5ab53e9942f3052b16f9e1f867e63901341b67b1..5d30b3e1806ab91fe39f0fa95586e79591035b28 100644 (file)
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -951,9 +951,7 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
                                 sizeof(struct yamdrv_ioctl_mcs));
                if (IS_ERR(ym))
                        return PTR_ERR(ym);
-               if (ym->cmd != SIOCYAMSMCS)
-                       return -EINVAL;
-               if (ym->bitrate > YAM_MAXBITRATE) {
+               if (ym->cmd != SIOCYAMSMCS || ym->bitrate > YAM_MAXBITRATE) {
                        kfree(ym);
                        return -EINVAL;
                }