From f79d2b21614f11ea9f99dc5a3155d23439cec773 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Wed, 8 Jun 2022 09:51:14 +0200
Subject: mtd-utils: nanddump: fix writing big images on 32bit machines
When writing a full 4GiB NAND to a file end_addr becomes 0x100000000.
With that writing out the first page to the file doesn't happen
because size_left is calculated to 0x100000000 - 0 = 0x100000000
which is then truncated to 32bit and becomes zero. Fix this by
using an appropriate 64bit type for size_left.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
---
nand-utils/nanddump.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'nand-utils')
diff --git a/nand-utils/nanddump.c b/nand-utils/nanddump.c
index d7fc320..47539f5 100644
--- a/nand-utils/nanddump.c
+++ b/nand-utils/nanddump.c
@@ -499,7 +499,7 @@ int main(int argc, char * const argv[])
}
} else {
/* Write requested length if oob is omitted */
- size_t size_left = end_addr - ofs;
+ long long size_left = end_addr - ofs;
if (omitoob && (size_left < bs))
err = ofd_write(ofd, readbuf, size_left);
else
--
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