diff options
| -rw-r--r-- | arch/s390/crypto/paes_s390.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c index 47f5ce7904f8..8a340c16acb4 100644 --- a/arch/s390/crypto/paes_s390.c +++ b/arch/s390/crypto/paes_s390.c @@ -199,8 +199,11 @@ static inline int convert_key(const u8 *key, unsigned int keylen, pk->len = sizeof(pk->protkey); - /* try three times in case of busy card */ - for (rc = -EIO, i = 0; rc && i < 3; i++) { + /* + * In case of a busy card retry with increasing delay + * of 200, 400, 800 and 1600 ms - in total 3 s. + */ + for (rc = -EIO, i = 0; rc && i < 5; i++) { if (rc == -EBUSY && msleep_interruptible((1 << i) * 100)) { rc = -EINTR; goto out; |