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| author |   Brian Norris <computersforpeace@gmail.com> | 2015-06-01 16:17:17 -0700 |
|---|---|---|
| committer | Brian Norris <computersforpeace@gmail.com> | 2015-06-16 18:46:09 -0700 |
| commit | 6a7c7334fe250b53c42eb9d3887fd42bdc9d0d28 (patch) | |
| tree | 7eb360d79b27a929ca9cad3506b9ead3b0567f0f /drivers/mtd | |
| parent | mtd: dc21285: use raw spinlock functions for nw_gpio_lock (diff) | |
| download | linux-dev-6a7c7334fe250b53c42eb9d3887fd42bdc9d0d28.tar.xz linux-dev-6a7c7334fe250b53c42eb9d3887fd42bdc9d0d28.zip | |
mtd: diskonchip: remove two-phase partitioning / registration
It is a Bad Idea (TM) to call mtd_device_register() or
mtd_device_parse_register() twice on the same master MTD. Among other
things, it makes partition overrides (e.g., cmdlinepart) much more
difficult.
Since commit 727dc612c46b ("mtd: part: Create the master device node
when partitioned"), we now have a config option that accomplishes the
same purpose as the double-registration done in diskonchip.c -- it
forces the master MTD to *always* be registered, while partitions may
optionally show up in addition. Eventually, we might like to make
CONFIG_MTD_PARTITIONED_MASTER into the default, but this could be
disruptive to user-space expectations of MTD numbering, so we'll take
that slowly.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Alexander Shiyan <shc_work@mail.ru>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/diskonchip.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index e5800146cf33..7da266a53979 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -1301,10 +1301,7 @@ static int __init nftl_scan_bbt(struct mtd_info *mtd) if (ret) return ret; - mtd_device_register(mtd, NULL, 0); - if (!no_autopart) - mtd_device_register(mtd, parts, numparts); - return 0; + return mtd_device_register(mtd, parts, no_autopart ? 0 : numparts); } static int __init inftl_scan_bbt(struct mtd_info *mtd) @@ -1358,10 +1355,7 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd) autopartitioning, but I want to give it more thought. */ if (!numparts) return -EIO; - mtd_device_register(mtd, NULL, 0); - if (!no_autopart) - mtd_device_register(mtd, parts, numparts); - return 0; + return mtd_device_register(mtd, parts, no_autopart ? 0 : numparts); } static inline int __init doc2000_init(struct mtd_info *mtd) |