[PATCH] pcmcia: resource handling fixes
- 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>
diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c
index 8567f4f..dd7651f 100644
--- a/drivers/pcmcia/cistpl.c
+++ b/drivers/pcmcia/cistpl.c
@@ -89,6 +89,8 @@
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 @@
}
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);
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index c8f2179..51aa04b 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -372,6 +372,9 @@
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 @@
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);
}
}