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-rw-r--r--drivers/pcmcia/rsrc_nonstatic.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index bb15a8bdbaab..827ca6e9ee54 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -690,6 +690,9 @@ static struct resource *__nonstatic_find_io_region(struct pcmcia_socket *s,
unsigned long min = base;
int ret;
+ if (!res)
+ return NULL;
+
data.mask = align - 1;
data.offset = base & data.mask;
data.map = &s_data->io_db;