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[PATCH] pcmcia: resource handling fixes

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- properly bail out in set_cis_map if call to socket driver's set_mem_map
  failed
- don't abort do_mem_probe cycle if one entry failed (!CONFIG_PCMCIA_PROBE)
- don't do iomem probing in chunks larger than 0x800000 (1 << 23) as
  yenta_socket and vrc4173_cardu.c fail to set_mem_map for windows equal to
  or larger than (1 << 24).

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Dominik Brodowski 2005-06-27 16:28:58 -07:00 committed by Linus Torvalds
parent f861bd2307
commit 2ad0a0a793
2 changed files with 12 additions and 3 deletions
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9
drivers/pcmcia/cistpl.c
View file

@ -89,6 +89,8 @@ static void __iomem *
set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flags)
{
pccard_mem_map *mem = &s->cis_mem;
int ret;
if (!(s->features & SS_CAP_STATIC_MAP) && mem->res == NULL) {
mem->res = pcmcia_find_mem_region(0, s->map_size, s->map_size, 0, s);
if (mem->res == NULL) {
@ -99,7 +101,12 @@ set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flag
}
mem->card_start = card_offset;
mem->flags = flags;
s->ops->set_mem_map(s, mem);
ret = s->ops->set_mem_map(s, mem);
if (ret) {
iounmap(s->cis_virt);
return NULL;
}
if (s->features & SS_CAP_STATIC_MAP) {
if (s->cis_virt)
iounmap(s->cis_virt);

6
drivers/pcmcia/rsrc_nonstatic.c
View file

@ -372,6 +372,9 @@ static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s)
base, base+num-1);
bad = fail = 0;
step = (num < 0x20000) ? 0x2000 : ((num>>4) & ~0x1fff);
/* don't allow too large steps */
if (step > 0x800000)
step = 0x800000;
/* cis_readable wants to map 2x map_size */
if (step < 2 * s->map_size)
step = 2 * s->map_size;
@ -465,8 +468,7 @@ static void validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) {
mm = *m;
if (do_mem_probe(mm.base, mm.num, s))
break;
do_mem_probe(mm.base, mm.num, s);
}
}