diff options
Diffstat (limited to 'drivers/crypto/geode-aes.c')
| -rw-r--r-- | drivers/crypto/geode-aes.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/crypto/geode-aes.c b/drivers/crypto/geode-aes.c index 6c04f1363e6d..6c6a31b979be 100644 --- a/drivers/crypto/geode-aes.c +++ b/drivers/crypto/geode-aes.c @@ -88,9 +88,10 @@ do_crypt(void *src, void *dst, int len, u32 flags) /* Start the operation */ iowrite32(AES_CTRL_START | flags, _iobase + AES_CTRLA_REG); - do + do { status = ioread32(_iobase + AES_INTR_REG); - while(!(status & AES_INTRA_PENDING) && --counter); + cpu_relax(); + } while(!(status & AES_INTRA_PENDING) && --counter); /* Clear the event */ iowrite32((status & 0xFF) | AES_INTRA_PENDING, _iobase + AES_INTR_REG); @@ -102,6 +103,7 @@ geode_aes_crypt(struct geode_aes_op *op) { u32 flags = 0; unsigned long iflags; + int ret; if (op->len == 0) return 0; @@ -130,7 +132,8 @@ geode_aes_crypt(struct geode_aes_op *op) _writefield(AES_WRITEKEY0_REG, op->key); } - do_crypt(op->src, op->dst, op->len, flags); + ret = do_crypt(op->src, op->dst, op->len, flags); + BUG_ON(ret); if (op->mode == AES_MODE_CBC) _readfield(AES_WRITEIV0_REG, op->iv); |