X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fmtd%2Fubi%2Fvmt.c;h=83ac8b43c4bd68a1e27e4c9b2ca15ca005cb2ebb;hb=7adc87b34aaf5df502f45e41f02089717b6f51c8;hp=97e093d196725ca2b8529221d5b3a5cbc8e47d72;hpb=279b1e0fd90ef63c7acb34a5ca573f065a6fefb4;p=pandora-kernel.git

diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c
index 97e093d19672..83ac8b43c4bd 100644
--- a/drivers/mtd/ubi/vmt.c
+++ b/drivers/mtd/ubi/vmt.c
@@ -26,6 +26,7 @@
 #include <linux/err.h>
 #include <linux/math64.h>
 #include <linux/slab.h>
+#include <linux/export.h>
 #include "ubi.h"
 
 #ifdef CONFIG_MTD_UBI_DEBUG
@@ -311,6 +312,12 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
 			vol->last_eb_bytes = vol->usable_leb_size;
 	}
 
+	/* Make volume "available" before it becomes accessible via sysfs */
+	spin_lock(&ubi->volumes_lock);
+	ubi->volumes[vol_id] = vol;
+	ubi->vol_count += 1;
+	spin_unlock(&ubi->volumes_lock);
+
 	/* Register character device for the volume */
 	cdev_init(&vol->cdev, &ubi_vol_cdev_operations);
 	vol->cdev.owner = THIS_MODULE;
@@ -353,11 +360,6 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
 	if (err)
 		goto out_sysfs;
 
-	spin_lock(&ubi->volumes_lock);
-	ubi->volumes[vol_id] = vol;
-	ubi->vol_count += 1;
-	spin_unlock(&ubi->volumes_lock);
-
 	ubi_volume_notify(ubi, vol, UBI_VOLUME_ADDED);
 	if (paranoid_check_volumes(ubi))
 		dbg_err("check failed while creating volume %d", vol_id);
@@ -378,6 +380,10 @@ out_sysfs:
 out_cdev:
 	cdev_del(&vol->cdev);
 out_mapping:
+	spin_lock(&ubi->volumes_lock);
+	ubi->volumes[vol_id] = NULL;
+	ubi->vol_count -= 1;
+	spin_unlock(&ubi->volumes_lock);
 	if (do_free)
 		kfree(vol->eba_tbl);
 out_acc: