[POWERPC] Make partitions optional in physmap_of

The latest physmap_of driver has a small error where it will fail the probe
with:

physmap-flash: probe of fff00000.small-flas failed with error -2

if there are no partition subnodes in the device tree and the old style binding
is not used.  Since partition definitions are optional, the probe should still
succeed.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c
index 3df001bfee36..096dd47b5d5d 100644
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -142,6 +142,8 @@ static int __devinit process_partitions(struct physmap_flash_info *info,
                 }
         } else {
                 nr_parts = parse_obsolete_partitions(dev, info, dp);
+                if (nr_parts == -ENOENT)
+                        nr_parts = 0;
         }
 
         if (nr_parts < 0)