diff options
| author | Vishnu Suresh <Vishnu@freescale.com> | 2008-10-20 17:06:18 +0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2008-12-25 03:01:17 +0300 |
| commit | 4b24ea971a93f5d0bec34bf7bfd0939f70cfaae6 (patch) | |
| tree | d45d4e98934da0226c5f88474deaa36910ace25e /drivers/crypto/talitos.c | |
| parent | 32bd78e0a5d34cd8e34046502bddcf31aeb38e64 (diff) | |
| download | linux-4b24ea971a93f5d0bec34bf7bfd0939f70cfaae6.tar.xz | |
crypto: talitos - Preempt overflow interrupts off-by-one fix
In commit ec6644d6325b5a38525f1d5b20fd4bf7db05cf2a "crypto: talitos - Preempt
overflow interrupts", the test in atomic_inc_not_zero was interpreted by the
author to be applied after the increment operation (not before). This off-by-one
fix prevents overflow error interrupts from occurring when requests are frequent
and large enough to do so.
Signed-off-by: Vishnu Suresh <Vishnu@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/talitos.c')
| -rw-r--r-- | drivers/crypto/talitos.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 16c97caa17ac..c3df3b1df857 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -1598,7 +1598,7 @@ static int talitos_probe(struct of_device *ofdev, goto err_out; } for (i = 0; i < priv->num_channels; i++) - atomic_set(&priv->submit_count[i], -priv->chfifo_len); + atomic_set(&priv->submit_count[i], -(priv->chfifo_len - 1)); priv->head = kzalloc(sizeof(int) * priv->num_channels, GFP_KERNEL); priv->tail = kzalloc(sizeof(int) * priv->num_channels, GFP_KERNEL); |