From: Stanley.Miao <stanley.miao@windriver.com>
Date: Tue, 18 May 2010 12:23:10 +0000 (+0800)
Subject: nandwrite: check if the start address is page-aligned
X-Git-Tag: v1.4.0~46
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a8214921bdc7d78b75d133a37ff9f8d4ec919650;p=mtd-utils.git

nandwrite: check if the start address is page-aligned

Only page-aligned address is permitted in NAND subsystem.

Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
---

diff --git a/nandwrite.c b/nandwrite.c
index 1e30ad1..e691ebd 100644
--- a/nandwrite.c
+++ b/nandwrite.c
@@ -307,6 +307,14 @@ int main(int argc, char * const argv[])
 		exit (EXIT_FAILURE);
 	}
 
+	if (mtdoffset & (meminfo.writesize - 1)) {
+		fprintf(stderr, "The start address is not page-aligned !\n"
+				"The pagesize of this NAND Flash is 0x%x.\n",
+				meminfo.writesize);
+		close(fd);
+		exit(EXIT_FAILURE);
+	}
+
 	if (autoplace) {
 		/* Read the current oob info */
 		if (ioctl (fd, MEMGETOOBSEL, &old_oobinfo) != 0) {