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flashcp: handle non-power-of-2 erase size (E.G. for dataflash)
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
flashcp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: mtd-utils-1.1.0/flashcp.c
===================================================================
--- mtd-utils-1.1.0.orig/flashcp.c 2007-08-03 15:55:51.000000000 +0200
+++ mtd-utils-1.1.0/flashcp.c 2009-02-17 14:02:09.000000000 +0100
@@ -255,8 +255,9 @@
#warning "Check for smaller erase regions"
erase.start = 0;
- erase.length = filestat.st_size & ~(mtd.erasesize - 1);
- if (filestat.st_size % mtd.erasesize) erase.length += mtd.erasesize;
+ erase.length = (filestat.st_size + mtd.erasesize - 1) / mtd.erasesize;
+ erase.length *= mtd.erasesize;
+
if (flags & FLAG_VERBOSE)
{
/* if the user wants verbose output, erase 1 block at a time and show him/her what's going on */
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