diff options
| -rw-r--r-- | drivers/pcmcia/cistpl.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c index 8b3b49217287..64d0515b76bd 100644 --- a/drivers/pcmcia/cistpl.c +++ b/drivers/pcmcia/cistpl.c @@ -1451,10 +1451,26 @@ int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info) done: /* invalidate CIS cache on failure */ if (!dev_ok || !ident_ok || !count) { - mutex_lock(&s->ops_mutex); - destroy_cis_cache(s); - mutex_unlock(&s->ops_mutex); - ret = -EIO; +#if defined(CONFIG_MTD_PCMCIA_ANONYMOUS) + /* Set up as an anonymous card. If we don't have anonymous + memory support then just error the card as there is no + point trying to second guess. + + Note: some cards have just a device entry, it may be + worth extending support to cover these in future */ + if (!dev_ok || !ident_ok) { + dev_info(&s->dev, "no CIS, assuming an anonymous memory card.\n"); + pcmcia_replace_cis(s, "\xFF", 1); + count = 1; + ret = 0; + } else +#endif + { + mutex_lock(&s->ops_mutex); + destroy_cis_cache(s); + mutex_unlock(&s->ops_mutex); + ret = -EIO; + } } if (info) |