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sparc: use scnprintf() in show_pciobppath_attr() in vio.c

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snprintf() returns the number of bytes that would be written,
which may be greater than the the actual length to be written.

show_pciobppath_attr() should return the number of bytes printed
into the buffer. This is the return value of scnprintf().

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Chen Zhou 2020-05-09 17:18:49 +08:00 committed by David S. Miller
parent 03a1b56f50
commit 117e2cb3ee
1 changed files with 1 additions and 1 deletions
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2
arch/sparc/kernel/vio.c
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@ -193,7 +193,7 @@ show_pciobppath_attr(struct device *dev, struct device_attribute *attr,
vdev = to_vio_dev(dev);
dp = vdev->dp;
return snprintf (buf, PAGE_SIZE, "%pOF\n", dp);
return scnprintf(buf, PAGE_SIZE, "%pOF\n", dp);
}
static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH,