diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2007-02-20 19:13:30 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-02-20 19:13:30 +0000 |
| commit | 5a84d159061d914c8dd4aa372ac6e9529c2be453 (patch) | |
| tree | 9b08af78085334af44414adafe0096276f8fe0ff /drivers/mtd/redboot.c | |
| parent | e80a0e6e7ccdf64575d4384cb4172860422f5b81 (diff) | |
| parent | 7d477a04a619e90ee08724e8f2d8803c6bdfcef8 (diff) | |
| download | kernel-crypto-5a84d159061d914c8dd4aa372ac6e9529c2be453.tar.gz kernel-crypto-5a84d159061d914c8dd4aa372ac6e9529c2be453.tar.xz kernel-crypto-5a84d159061d914c8dd4aa372ac6e9529c2be453.zip | |
Merge ARM fixes
Diffstat (limited to 'drivers/mtd/redboot.c')
| -rw-r--r-- | drivers/mtd/redboot.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c index 035cd9b0cc0..a61351f88ec 100644 --- a/drivers/mtd/redboot.c +++ b/drivers/mtd/redboot.c @@ -94,8 +94,19 @@ static int parse_redboot_partitions(struct mtd_info *master, * (NOTE: this is 'size' not 'data_length'; size is * the full size of the entry.) */ - if (swab32(buf[i].size) == master->erasesize) { + + /* RedBoot can combine the FIS directory and + config partitions into a single eraseblock; + we assume wrong-endian if either the swapped + 'size' matches the eraseblock size precisely, + or if the swapped size actually fits in an + eraseblock while the unswapped size doesn't. */ + if (swab32(buf[i].size) == master->erasesize || + (buf[i].size > master->erasesize + && swab32(buf[i].size) < master->erasesize)) { int j; + /* Update numslots based on actual FIS directory size */ + numslots = swab32(buf[i].size) / sizeof (struct fis_image_desc); for (j = 0; j < numslots; ++j) { /* A single 0xff denotes a deleted entry. @@ -120,11 +131,11 @@ static int parse_redboot_partitions(struct mtd_info *master, swab32s(&buf[j].desc_cksum); swab32s(&buf[j].file_cksum); } + } else if (buf[i].size < master->erasesize) { + /* Update numslots based on actual FIS directory size */ + numslots = buf[i].size / sizeof(struct fis_image_desc); } break; - } else { - /* re-calculate of real numslots */ - numslots = buf[i].size / sizeof(struct fis_image_desc); } } if (i == numslots) { |