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mtd: ubi: get_bad_peb_limit from mtd master 

Like mentioned in the coment we need the size of the entire flash chip.
Check if a master exists and take his size.

Otherwise the limit will be too small and kernel prints:
UBI warning: print_rsvd_warning: cannot reserve enough PEBs for \
bad PEB handling, reserved 19, need 20

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jan Weitzel 2014-11-19 15:45:41 +01:00 committed by Sascha Hauer
parent 16018ed7fe
commit c267e2dd73
1 changed files with 5 additions and 1 deletions
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6
drivers/mtd/ubi/build.c
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@ -237,7 +237,11 @@ static int get_bad_peb_limit(const struct ubi_device *ubi, int max_beb_per1024)
* is that all the bad eraseblocks of the chip are in
* the MTD partition we are attaching (ubi->mtd).
*/
device_size = ubi->mtd->size;
if (ubi->mtd->master)
device_size = ubi->mtd->master->size;
else
device_size = ubi->mtd->size;
device_pebs = mtd_div_by_eb(device_size, ubi->mtd);
limit = mult_frac(device_pebs, max_beb_per1024, 1024);