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| author | Patrick Georgi <patrick.georgi@secunet.com> | 2013-04-11 12:32:32 +0200 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2013-05-04 00:14:11 +0200 |
| commit | a98d3061e9e85be2f924850860e76f07cfc5af37 (patch) | |
| tree | aae5432e1586fe6d04f97835318b7460569270f5 /util/nvramtool | |
| parent | 2fde9668b47e74d1bfad2f1688a4481e6b966d04 (diff) | |
| download | coreboot-a98d3061e9e85be2f924850860e76f07cfc5af37.tar.gz coreboot-a98d3061e9e85be2f924850860e76f07cfc5af37.tar.bz2 coreboot-a98d3061e9e85be2f924850860e76f07cfc5af37.zip | |
nvramtool: Use CMOS_SIZE for cmos size
We write CMOS data to 128 byte files, which is a problem
when using them later-on (eg. as part of a coreboot image)
where nvramtool assumes them to be 256 byte, and so data
corruption occurs.
Change-Id: Ibc919c95f6d522866b21fd313ceb023e73d09fb9
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/3186
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'util/nvramtool')
| -rw-r--r-- | util/nvramtool/cli/nvramtool.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/util/nvramtool/cli/nvramtool.c b/util/nvramtool/cli/nvramtool.c index 76d5cbb67887..d5acc5838e56 100644 --- a/util/nvramtool/cli/nvramtool.c +++ b/util/nvramtool/cli/nvramtool.c @@ -162,8 +162,8 @@ int main(int argc, char *argv[]) exit(1); } - if (fd_stat.st_size < 128) { - lseek(fd, 127, SEEK_SET); + if (fd_stat.st_size < CMOS_SIZE) { + lseek(fd, CMOS_SIZE - 1, SEEK_SET); if (write(fd, "\0", 1) != 1) { fprintf(stderr, "Unable to extended '%s' to its full size.\n", nvramtool_op_modifiers[NVRAMTOOL_MOD_USE_CMOS_FILE].param); @@ -176,7 +176,7 @@ int main(int argc, char *argv[]) #endif } - cmos_default = mmap(NULL, 128, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + cmos_default = mmap(NULL, CMOS_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); if (cmos_default == MAP_FAILED) { fprintf(stderr, "Couldn't map '%s'\n", nvramtool_op_modifiers[NVRAMTOOL_MOD_USE_CMOS_FILE].param); exit(1); |