[PATCH] pcmcia: avoid duble iounmap of one address

Avoid double iounmap of one address, and disable cis_virt if set_mem_map
failed.
Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/pcmcia/cistpl.c

@@ -91,19 +91,25 @@ set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flag
 	pccard_mem_map *mem = &s->cis_mem;
 	int ret;
 
-    if (!(s->features & SS_CAP_STATIC_MAP) && mem->res == NULL) {
+	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) {
 			printk(KERN_NOTICE "cs: unable to map card memory!\n");
 			return NULL;
 		}
-	s->cis_virt = ioremap(mem->res->start, s->map_size);
+		s->cis_virt = NULL;
 	}
+
+	if (!(s->features & SS_CAP_STATIC_MAP) && (!s->cis_virt))
+		s->cis_virt = ioremap(mem->res->start, s->map_size);
+
 	mem->card_start = card_offset;
 	mem->flags = flags;
+
 	ret = s->ops->set_mem_map(s, mem);
 	if (ret) {
 		iounmap(s->cis_virt);
+		s->cis_virt = NULL;
 		return NULL;
 	}
 
@@ -112,6 +118,7 @@ set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flag
 			iounmap(s->cis_virt);
 		s->cis_virt = ioremap(mem->static_start, s->map_size);
 	}
+
 	return s->cis_virt;
 }