1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/block/cryptoloop.c b/drivers/block/cryptoloop.c
index 5be6f998d8c5..3d4261c39f16 100644
--- a/drivers/block/cryptoloop.c
+++ b/drivers/block/cryptoloop.c
@@ -57,9 +57,11 @@ cryptoloop_init(struct loop_device *lo, const struct loop_info64 *info)
         mode = strsep(&cmsp, "-");
 
         if (mode == NULL || strcmp(mode, "cbc") == 0)
-                tfm = crypto_alloc_tfm(cipher, CRYPTO_TFM_MODE_CBC);
+                tfm = crypto_alloc_tfm(cipher, CRYPTO_TFM_MODE_CBC |
+                                               CRYPTO_TFM_REQ_MAY_SLEEP);
         else if (strcmp(mode, "ecb") == 0)
-                tfm = crypto_alloc_tfm(cipher, CRYPTO_TFM_MODE_ECB);
+                tfm = crypto_alloc_tfm(cipher, CRYPTO_TFM_MODE_ECB |
+                                               CRYPTO_TFM_REQ_MAY_SLEEP);
         if (tfm == NULL)
                 return -EINVAL;