From ba224c47a1f71f01c0e65da85718247af91a5cc4 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Mon, 31 Aug 2015 14:34:55 -0700 Subject: flash_{un,}lock: don't allow "last byte + 1" A lock/unlock/islocked ioctl() should be prevented from anything past the last byte, inclusive. But we were doing an exclusive check. This isn't a big deal, as the kernel MTD APIs would be guarding this anyway, but let's do this for completeness. Signed-off-by: Brian Norris --- flash_unlock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/flash_unlock.c b/flash_unlock.c index 7a7a773..d775c0b 100644 --- a/flash_unlock.c +++ b/flash_unlock.c @@ -168,7 +168,7 @@ int main(int argc, char *argv[]) } else { mtdLockInfo.start = 0; } - if (mtdLockInfo.start > mtdInfo.size) + if (mtdLockInfo.start >= mtdInfo.size) errmsg_die("%#x is beyond device size %#x", mtdLockInfo.start, mtdInfo.size); -- cgit v1.2.3