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path: root/drivers/crypto/omap-des.c
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Diffstat (limited to 'drivers/crypto/omap-des.c')
-rw-r--r--drivers/crypto/omap-des.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/crypto/omap-des.c b/drivers/crypto/omap-des.c
index 31fc9300b990..8eda43319204 100644
--- a/drivers/crypto/omap-des.c
+++ b/drivers/crypto/omap-des.c
@@ -637,6 +637,9 @@ static int omap_des_crypt(struct skcipher_request *req, unsigned long mode)
!!(mode & FLAGS_ENCRYPT),
!!(mode & FLAGS_CBC));
+ if (!req->cryptlen)
+ return 0;
+
if (!IS_ALIGNED(req->cryptlen, DES_BLOCK_SIZE))
return -EINVAL;