[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>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c
index 8567f4fad501..dd7651ff5b43 100644
--- a/drivers/pcmcia/cistpl.c
+++ b/drivers/pcmcia/cistpl.c
@@ -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);