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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 18:20:31 (GMT)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 18:20:31 (GMT)
commita8e98d6d51a3eb7bb061b1625193a129c8bd094f (patch)
tree0fa58b6e11e37023b024e55b8f0e7e01438706d4 /drivers/mtd/mtdpart.c
parentf0f1b3364ae7f48084bdf2837fb979ff59622523 (diff)
parentf9f7dd222364a6428d2ad99a515935dd1dd89d18 (diff)
downloadlinux-fsl-qoriq-a8e98d6d51a3eb7bb061b1625193a129c8bd094f.tar.xz
Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (120 commits) [MTD] Fix mtdoops.c compilation [MTD] [NOR] fix startup lock when using multiple nor flash chips [MTD] [DOC200x] eccbuf is statically defined and always evaluate to true [MTD] Fix maps/physmap.c compilation with CONFIG_PM [MTD] onenand: Add panic_write function to the onenand driver [MTD] mtdoops: Use the panic_write function when present [MTD] Add mtd panic_write function pointer [MTD] [NAND] Freescale enhanced Local Bus Controller FCM NAND support. [MTD] physmap.c: Add support for multiple resources [MTD] [NAND] Fix misparenthesization introduced by commit 78b65179... [MTD] [NAND] Fix Blackfin NFC ECC calculating bug with page size 512 bytes [MTD] [NAND] Remove wrong operation in PM function of the BF54x NFC driver [MTD] [NAND] Remove unused variable in plat_nand_remove [MTD] Unlocking all Intel flash that is locked on power up. [MTD] [NAND] at91_nand: Make mtdparts option can override board info [MTD] mtdoops: Various minor cleanups [MTD] mtdoops: Ensure sequential write to the buffer [MTD] mtdoops: Perform write operations in a workqueue [MTD] mtdoops: Add further error return code checking [MTD] [NOR] Test devtype, not definition in flash_probe(), drivers/mtd/devices/lart.c ...
Diffstat (limited to 'drivers/mtd/mtdpart.c')
-rw-r--r--drivers/mtd/mtdpart.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 6174a97..c66902d 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -151,6 +151,20 @@ static int part_write (struct mtd_info *mtd, loff_t to, size_t len,
len, retlen, buf);
}
+static int part_panic_write (struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const u_char *buf)
+{
+ struct mtd_part *part = PART(mtd);
+ if (!(mtd->flags & MTD_WRITEABLE))
+ return -EROFS;
+ if (to >= mtd->size)
+ len = 0;
+ else if (to + len > mtd->size)
+ len = mtd->size - to;
+ return part->master->panic_write (part->master, to + part->offset,
+ len, retlen, buf);
+}
+
static int part_write_oob(struct mtd_info *mtd, loff_t to,
struct mtd_oob_ops *ops)
{
@@ -352,6 +366,9 @@ int add_mtd_partitions(struct mtd_info *master,
slave->mtd.read = part_read;
slave->mtd.write = part_write;
+ if (master->panic_write)
+ slave->mtd.panic_write = part_panic_write;
+
if(master->point && master->unpoint){
slave->mtd.point = part_point;
slave->mtd.unpoint = part_unpoint;