mfd: Check for mem_base when building IORESOURCE_MEM resources

If mem_base is NULL, then we fall back to the default case, just copying the
original resource.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 8ffbb7a..7dd76bc 100644 (file)
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -48,7 +48,7 @@ static int mfd_add_device(struct device *parent, int id,
                res[r].flags = cell->resources[r].flags;
 
                /* Find out base to use */
-               if (cell->resources[r].flags & IORESOURCE_MEM) {
+               if ((cell->resources[r].flags & IORESOURCE_MEM) && mem_base) {
                        res[r].parent = mem_base;
                        res[r].start = mem_base->start +
                                cell->resources[r].start;