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path: root/drivers/mtd/mtdpart.c
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Diffstat (limited to 'drivers/mtd/mtdpart.c')
-rw-r--r--drivers/mtd/mtdpart.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 208822040735..c0d464d192ee 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -413,7 +413,7 @@ static struct mtd_part *allocate_partition(struct mtd_info *parent,
* parent conditional on that option. Note, this is a way to
* distinguish between the master and the partition in sysfs.
*/
- slave->mtd.dev.parent = IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER) ?
+ slave->mtd.dev.parent = IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER) || mtd_is_partition(parent) ?
&parent->dev :
parent->dev.parent;
slave->mtd.dev.of_node = part->of_node;
@@ -664,8 +664,17 @@ EXPORT_SYMBOL_GPL(mtd_add_partition);
*/
static int __mtd_del_partition(struct mtd_part *priv)
{
+ struct mtd_part *child, *next;
int err;
+ list_for_each_entry_safe(child, next, &mtd_partitions, list) {
+ if (child->parent == &priv->mtd) {
+ err = __mtd_del_partition(child);
+ if (err)
+ return err;
+ }
+ }
+
sysfs_remove_files(&priv->mtd.dev.kobj, mtd_partition_attrs);
err = del_mtd_device(&priv->mtd);
@@ -680,16 +689,16 @@ static int __mtd_del_partition(struct mtd_part *priv)
/*
* This function unregisters and destroy all slave MTD objects which are
- * attached to the given master MTD object.
+ * attached to the given MTD object.
*/
-int del_mtd_partitions(struct mtd_info *master)
+int del_mtd_partitions(struct mtd_info *mtd)
{
struct mtd_part *slave, *next;
int ret, err = 0;
mutex_lock(&mtd_partitions_mutex);
list_for_each_entry_safe(slave, next, &mtd_partitions, list)
- if (slave->parent == master) {
+ if (slave->parent == mtd) {
ret = __mtd_del_partition(slave);
if (ret < 0)
err = ret;
@@ -699,14 +708,14 @@ int del_mtd_partitions(struct mtd_info *master)
return err;
}
-int mtd_del_partition(struct mtd_info *master, int partno)
+int mtd_del_partition(struct mtd_info *mtd, int partno)
{
struct mtd_part *slave, *next;
int ret = -EINVAL;
mutex_lock(&mtd_partitions_mutex);
list_for_each_entry_safe(slave, next, &mtd_partitions, list)
- if ((slave->parent == master) &&
+ if ((slave->parent == mtd) &&
(slave->mtd.index == partno)) {
ret = __mtd_del_partition(slave);
break;
@@ -939,6 +948,6 @@ uint64_t mtd_get_device_size(const struct mtd_info *mtd)
if (!mtd_is_partition(mtd))
return mtd->size;
- return mtd_to_part(mtd)->parent->size;
+ return mtd_get_device_size(mtd_to_part(mtd)->parent);
}
EXPORT_SYMBOL_GPL(mtd_get_device_size);