From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Eric Farman <farman@linux.ibm.com>,
Cornelia Huck <cohuck@redhat.com>,
Sasha Levin <sashal@kernel.org>,
linux-s390@vger.kernel.org, kvm@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 026/123] s390/cio: Fix cleanup when unsupported IDA format is used
Date: Wed, 5 Dec 2018 04:34:18 -0500 [thread overview]
Message-ID: <20181205093555.5386-26-sashal@kernel.org> (raw)
In-Reply-To: <20181205093555.5386-1-sashal@kernel.org>
From: Eric Farman <farman@linux.ibm.com>
[ Upstream commit b89e242eee8d4cd8261d8d821c62c5d1efc454d0 ]
Direct returns from within a loop are rude, but it doesn't mean it gets
to avoid releasing the memory acquired beforehand.
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Message-Id: <20181109023937.96105-3-farman@linux.ibm.com>
Reviewed-by: Farhan Ali <alifm@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/s390/cio/vfio_ccw_cp.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c
index ef5ab45d94b3..70a006ba4d05 100644
--- a/drivers/s390/cio/vfio_ccw_cp.c
+++ b/drivers/s390/cio/vfio_ccw_cp.c
@@ -387,8 +387,10 @@ static int ccwchain_calc_length(u64 iova, struct channel_program *cp)
* orb specified one of the unsupported formats, we defer
* checking for IDAWs in unsupported formats to here.
*/
- if ((!cp->orb.cmd.c64 || cp->orb.cmd.i2k) && ccw_is_idal(ccw))
+ if ((!cp->orb.cmd.c64 || cp->orb.cmd.i2k) && ccw_is_idal(ccw)) {
+ kfree(p);
return -EOPNOTSUPP;
+ }
if ((!ccw_is_chain(ccw)) && (!ccw_is_tic(ccw)))
break;
--
2.17.1
next prev parent reply other threads:[~2018-12-05 9:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20181205093555.5386-1-sashal@kernel.org>
2018-12-05 9:34 ` [PATCH AUTOSEL 4.19 025/123] s390/cio: Fix cleanup of pfn_array alloc failure Sasha Levin
2018-12-05 9:34 ` Sasha Levin [this message]
2018-12-05 9:35 ` [PATCH AUTOSEL 4.19 080/123] KVM: VMX: Update shared MSRs to be saved/restored on MSR_EFER.LMA changes Sasha Levin
2018-12-05 9:35 ` [PATCH AUTOSEL 4.19 081/123] KVM: x86: fix empty-body warnings Sasha Levin
2018-12-05 9:35 ` [PATCH AUTOSEL 4.19 082/123] x86/kvm/vmx: fix old-style function declaration Sasha Levin
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