diff options
| author | Tian Tao <tiantao6@hisilicon.com> | 2021-04-12 17:35:44 +0800 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2021-05-10 10:44:43 +0200 |
| commit | ce675043fa12dfc50276e00f31da61e14846b178 (patch) | |
| tree | 98fee350632c63729118ab5a28d62be8f3496e09 /drivers/mtd/mtdpart.c | |
| parent | 5b2fbe0ca0e8a88f8da3c96cd6628561852be655 (diff) | |
| download | lwn-ce675043fa12dfc50276e00f31da61e14846b178.tar.gz lwn-ce675043fa12dfc50276e00f31da61e14846b178.zip | |
mtd: mtdpart: Convert sysfs sprintf/snprintf family to sysfs_emit
Use sysfs_emit instead of snprintf to avoid buf overrun,because in
sysfs_emit it strictly checks whether buf is null or buf whether
pagesize aligned, otherwise it returns an error.
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1618220144-33839-3-git-send-email-tiantao6@hisilicon.com
Diffstat (limited to 'drivers/mtd/mtdpart.c')
| -rw-r--r-- | drivers/mtd/mtdpart.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 665fd9020b76..66a67c6e3cbc 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -217,7 +217,7 @@ static ssize_t mtd_partition_offset_show(struct device *dev, { struct mtd_info *mtd = dev_get_drvdata(dev); - return snprintf(buf, PAGE_SIZE, "%lld\n", mtd->part.offset); + return sysfs_emit(buf, "%lld\n", mtd->part.offset); } static DEVICE_ATTR(offset, S_IRUGO, mtd_partition_offset_show, NULL); |