diff options
Diffstat (limited to 'drivers/pcmcia/cistpl.c')
| -rw-r--r-- | drivers/pcmcia/cistpl.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c index 25b1cd219e3..41ec7729edd 100644 --- a/drivers/pcmcia/cistpl.c +++ b/drivers/pcmcia/cistpl.c @@ -319,22 +319,23 @@ remove_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, u_int len) } } +/** + * destroy_cis_cache() - destroy the CIS cache + * @s: pcmcia_socket for which CIS cache shall be destroyed + * + * This destroys the CIS cache but keeps any fake CIS alive. + */ + void destroy_cis_cache(struct pcmcia_socket *s) { struct list_head *l, *n; + struct cis_cache_entry *cis; list_for_each_safe(l, n, &s->cis_cache) { - struct cis_cache_entry *cis = list_entry(l, struct cis_cache_entry, node); - + cis = list_entry(l, struct cis_cache_entry, node); list_del(&cis->node); kfree(cis); } - - /* - * If there was a fake CIS, destroy that as well. - */ - kfree(s->fake_cis); - s->fake_cis = NULL; } EXPORT_SYMBOL(destroy_cis_cache); @@ -1596,6 +1597,9 @@ int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info) if (!s) return -EINVAL; + /* We do not want to validate the CIS cache... */ + destroy_cis_cache(s); + tuple = kmalloc(sizeof(*tuple), GFP_KERNEL); if (tuple == NULL) { dev_printk(KERN_WARNING, &s->dev, "no memory to validate CIS\n"); @@ -1647,6 +1651,10 @@ int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info) count = 0; done: + /* invalidate CIS cache on failure */ + if (!dev_ok || !ident_ok || !count) + destroy_cis_cache(s); + if (info) *info = count; kfree(tuple); |