[PATCH AUTOSEL 4.19 025/123] s390/cio: Fix cleanup of pfn_array alloc failure

Sasha Levin
2018-12-05T09:37:32Z

From: Eric Farman <farman@linux.ibm.com>

[ Upstream commit 806212f91c874b24cf9eb4a9f180323671b6c5ed ]

If pfn_array_alloc fails somehow, we need to release the pfn_array_table
that was malloc'd earlier.

Signed-off-by: Eric Farman <farman@linux.ibm.com>
Message-Id: <20181109023937.96105-2-farman@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 | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c
index fd77e46eb3b2..ef5ab45d94b3 100644
--- a/drivers/s390/cio/vfio_ccw_cp.c
+++ b/drivers/s390/cio/vfio_ccw_cp.c
@@ -528,7 +528,7 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,

ret = pfn_array_alloc_pin(pat->pat_pa, cp->mdev, ccw->cda, ccw->count);
if (ret < 0)
- goto out_init;
+ goto out_unpin;

/* Translate this direct ccw to a idal ccw. */
idaws = kcalloc(ret, sizeof(*idaws), GFP_DMA | GFP_KERNEL);
--
2.17.1