linux-kernel - [PATCH v1 4/9] s390/vmemmap: cleanup when vmemmap

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Message-Id: <20200703133917.39045-5-david@redhat.com>
Date:   Fri,  3 Jul 2020 15:39:12 +0200
From:   David Hildenbrand <david@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-s390@...r.kernel.org, linux-mm@...ck.org,
        David Hildenbrand <david@...hat.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Gerald Schaefer <gerald.schaefer@...ibm.com>
Subject: [PATCH v1 4/9] s390/vmemmap: cleanup when vmemmap_populate() fails

Cleanup what we partially added in case vmemmap_populate() fails.

Cc: Heiko Carstens <heiko.carstens@...ibm.com>
Cc: Vasily Gorbik <gor@...ux.ibm.com>
Cc: Christian Borntraeger <borntraeger@...ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@...ibm.com>
Signed-off-by: David Hildenbrand <david@...hat.com>
---
 arch/s390/mm/vmem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index 16e109c292bf5..bcddabd509da8 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -364,6 +364,8 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node,
 	}
 	ret = 0;
 out:
+	if (ret)
+		vmemmap_free(start, end, altmap);
 	return ret;
 }
 
-- 
2.26.2