diff options
| -rw-r--r-- | drivers/mtd/nand/nand-bb.c | 53 | ||||
| -rw-r--r-- | include/nand.h | 6 |
2 files changed, 37 insertions, 22 deletions
diff --git a/drivers/mtd/nand/nand-bb.c b/drivers/mtd/nand/nand-bb.c index 06b5824212..0d3de41b0a 100644 --- a/drivers/mtd/nand/nand-bb.c +++ b/drivers/mtd/nand/nand-bb.c @@ -29,6 +29,7 @@ #include <fcntl.h> #include <libgen.h> #include <linux/list.h> +#include <linux/err.h> struct nand_bb { char *name; @@ -240,32 +241,18 @@ static struct file_operations nand_bb_ops = { static LIST_HEAD(bb_list); -/** - * Add a bad block aware device ontop of another (NAND) device - * @param[in] dev The device to add a partition on - * @param[in] name Partition name (can be obtained with devinfo command) - * @return The device representing the new partition. - */ -int dev_add_bb_dev(const char *path, const char *name) +struct cdev *mtd_add_bb(struct mtd_info *mtd, const char *name) { struct nand_bb *bb; - struct cdev *parent; - int ret = -ENOMEM; - - parent = cdev_by_name(path); - if (!parent) - return -ENODEV; - - if (!parent->mtd) - return -EINVAL; + int ret; bb = xzalloc(sizeof(*bb)); - bb->mtd = parent->mtd; + bb->mtd = mtd; if (name) bb->cdev.name = xstrdup(name); else - bb->cdev.name = asprintf("%s.bb", path);; + bb->cdev.name = asprintf("%s.bb", mtd->cdev.name); nand_bb_calc_size(bb); bb->cdev.ops = &nand_bb_ops; @@ -273,15 +260,37 @@ int dev_add_bb_dev(const char *path, const char *name) ret = devfs_create(&bb->cdev); if (ret) - goto out4; + goto err; list_add_tail(&bb->list, &bb_list); - return 0; + return &bb->cdev; -out4: +err: free(bb); - return ret; + return ERR_PTR(ret); +} + +/** + * Add a bad block aware device ontop of another (NAND) device + * @param[in] dev The device to add a partition on + * @param[in] name Partition name (can be obtained with devinfo command) + * @return The device representing the new partition. + */ +int dev_add_bb_dev(const char *path, const char *name) +{ + struct cdev *parent, *cdev; + + parent = cdev_by_name(path); + if (!parent) + return -ENODEV; + + if (!parent->mtd) + return -EINVAL; + + cdev = mtd_add_bb(parent->mtd, name); + + return PTR_ERR(cdev); } int dev_remove_bb_dev(const char *name) diff --git a/include/nand.h b/include/nand.h index a0e77cc8cd..1da35d0ce8 100644 --- a/include/nand.h +++ b/include/nand.h @@ -7,6 +7,7 @@ struct nand_bb; #ifdef CONFIG_NAND int dev_add_bb_dev(const char *filename, const char *name); int dev_remove_bb_dev(const char *name); +struct cdev *mtd_add_bb(struct mtd_info *mtd, const char *name); #else static inline int dev_add_bb_dev(const char *filename, const char *name) { return 0; @@ -15,6 +16,11 @@ static inline int dev_remove_bb_dev(const char *name) { return 0; } + +static inline struct cdev *mtd_add_bb(struct mtd_info *mtd, const char *name) +{ + return NULL; +} #endif #endif /* __NAND_H__ */ |