diff options
| author | Brian Norris <computersforpeace@gmail.com> | 2010-10-16 13:54:05 -0700 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2010-10-17 11:07:25 +0300 |
| commit | cafa878ec4cf894821a0b1c7a41417baa58a635d (patch) | |
| tree | dd25c6e137cd4214e83cbd3fbd099f722523c8d0 /flash_erase.c | |
| parent | 00fc2d4d47e87536c89509f234777fc7d93cab9e (diff) | |
mtd-utils: flash_erase: Fix output of offsets
Need to use unsigned arithmetic and a 64-bit cast in order to
calculate and output the correct offset for eraseblocks at large
offsets. Signed integer arithmetic does not produce the correct
result "uint64_t" result, so for offsets over 2GB we get
messages like:
Erasing 512 Kibyte @ ffffffff83180000 -- 4308642136 % complete.
Note that this error was not affecting proper erasure; it just
produced incorrect status messages.
Also, we should not add an extra eraseblock for the final status
message; this gives misleading output when, for example, the
following statement is executed:
$ flash_erase /dev/mtd0 0 1
Erasing 512 Kibyte @ 80000 -- 100 % complete
We aren't erasing at offset 0x80000; it should display offset 0.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'flash_erase.c')
| -rw-r--r-- | flash_erase.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/flash_erase.c b/flash_erase.c index 8929054..1a7b52e 100644 --- a/flash_erase.c +++ b/flash_erase.c @@ -93,7 +93,8 @@ int main(int argc, char *argv[]) { libmtd_t mtd_desc; struct mtd_dev_info mtd; - int fd, clmpos = 0, clmlen = 8, eb, eb_start, eb_cnt; + int fd, clmpos = 0, clmlen = 8; + unsigned int eb, eb_start, eb_cnt; int isNAND; int error = 0; uint64_t offset = 0; @@ -232,7 +233,7 @@ int main(int argc, char *argv[]) eb_cnt = (mtd.size / mtd.eb_size) - eb_start; for (eb = eb_start; eb < eb_start + eb_cnt; eb++) { - offset = eb * mtd.eb_size; + offset = (uint64_t)eb * mtd.eb_size; if (!noskipbad) { int ret = mtd_is_bad(&mtd, fd, eb); @@ -285,7 +286,6 @@ int main(int argc, char *argv[]) } verbose(!quiet, " Cleanmarker written at %"PRIx64, offset); } - offset += mtd.eb_size; show_progress(&mtd, offset, eb, eb_start, eb_cnt); bareverbose(!quiet, "\n"); |