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Diffstat (limited to 'crypto/af_alg.c')
-rw-r--r--crypto/af_alg.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 3cf734835ccb..7d4b6016b83d 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -542,9 +542,14 @@ void af_alg_free_sg(struct af_alg_sgl *sgl)
{
int i;
- if (sgl->need_unpin)
- for (i = 0; i < sgl->sgt.nents; i++)
- unpin_user_page(sg_page(&sgl->sgt.sgl[i]));
+ if (sgl->sgt.sgl) {
+ if (sgl->need_unpin)
+ for (i = 0; i < sgl->sgt.nents; i++)
+ unpin_user_page(sg_page(&sgl->sgt.sgl[i]));
+ if (sgl->sgt.sgl != sgl->sgl)
+ kvfree(sgl->sgt.sgl);
+ sgl->sgt.sgl = NULL;
+ }
}
EXPORT_SYMBOL_GPL(af_alg_free_sg);