mtd: maps: Remove BUS_ID_SIZE from integrator_flash

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Tested-by: Catalin Marinas <catalin.marinas@arm.com>

1 files changed, 14 insertions, 8 deletions

diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c
index b08a798ee254..2aac41bde8b3 100644
--- a/drivers/mtd/maps/integrator-flash.c
+++ b/drivers/mtd/maps/integrator-flash.c
@@ -42,10 +42,8 @@
 #include <mach/hardware.h>
 #include <asm/system.h>
 
-#define SUBDEV_NAME_SIZE        (BUS_ID_SIZE + 2)
-
 struct armflash_subdev_info {
-        char                    name[SUBDEV_NAME_SIZE];
+        char                    *name;
         struct mtd_info         *mtd;
         struct map_info         map;
         struct flash_platform_data *plat;
@@ -134,6 +132,8 @@ static void armflash_subdev_remove(struct armflash_subdev_info *subdev)
                 map_destroy(subdev->mtd);
         if (subdev->map.virt)
                 iounmap(subdev->map.virt);
+        kfree(subdev->name);
+        subdev->name = NULL;
         release_mem_region(subdev->map.phys, subdev->map.size);
 }
 
@@ -177,16 +177,22 @@ static int armflash_probe(struct platform_device *dev)
 
                 if (nr == 1)
                         /* No MTD concatenation, just use the default name */
-                        snprintf(subdev->name, SUBDEV_NAME_SIZE, "%s",
-                                 dev_name(&dev->dev));
+                        subdev->name = kstrdup(dev_name(&dev->dev), GFP_KERNEL);
                 else
-                        snprintf(subdev->name, SUBDEV_NAME_SIZE, "%s-%d",
-                                 dev_name(&dev->dev), i);
+                        subdev->name = kasprintf(GFP_KERNEL, "%s-%d",
+                                                 dev_name(&dev->dev), i);
+                if (!subdev->name) {
+                        err = -ENOMEM;
+                        break;
+                }
                 subdev->plat = plat;
 
                 err = armflash_subdev_probe(subdev, res);
-                if (err)
+                if (err) {
+                        kfree(subdev->name);
+                        subdev->name = NULL;
                         break;
+                }
         }
         info->nr_subdev = i;