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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2009-12-02 17:58:12 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2009-12-03 11:12:51 +0100 |
| commit | 2c84734970cd012ee6a417adc8f4e8936ee2e86c (patch) | |
| tree | c2e75af8afc56a47300fdf0e39dc6e442299a784 | |
| parent | 74d14b746d94ff36f67c7e3ea19977f6ee7d5912 (diff) | |
| download | barebox-2c84734970cd012ee6a417adc8f4e8936ee2e86c.tar.gz barebox-2c84734970cd012ee6a417adc8f4e8936ee2e86c.tar.xz | |
nand: refuse to write data if not beginning on a page boundary
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/nand/nand.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/nand/nand.c b/drivers/nand/nand.c index a058df2f63..f79f7c370f 100644 --- a/drivers/nand/nand.c +++ b/drivers/nand/nand.c @@ -58,12 +58,17 @@ static ssize_t nand_write(struct cdev* cdev, const void *buf, size_t _count, ulo void *wrbuf = NULL; size_t count = _count; + if (NOTALIGNED(offset)) { + printf("offset 0x%08x not page aligned\n", offset); + return -EINVAL; + } + debug("write: 0x%08x 0x%08x\n", offset, count); while (count) { now = count > info->writesize ? info->writesize : count; - if (NOTALIGNED(now) || NOTALIGNED(offset)) { + if (NOTALIGNED(now)) { debug("not aligned: %d %d\n", info->writesize, (offset % info->writesize)); wrbuf = xmalloc(info->writesize); memset(wrbuf, 0xff, info->writesize); |