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-rw-r--r--drivers/pcmcia/pcmcia_resource.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index 74cebd424032..b9201c2ec38b 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -95,7 +95,7 @@ static int alloc_io_space(struct pcmcia_socket *s, u_int attr, ioaddr_t *base,
* potential conflicts, just the most obvious ones.
*/
for (i = 0; i < MAX_IO_WIN; i++)
- if ((s->io[i].res) &&
+ if ((s->io[i].res) && *base &&
((s->io[i].res->start & (align-1)) == *base))
return 1;
for (i = 0; i < MAX_IO_WIN; i++) {