powerpc/vio: use strcpy in modalias_show

commit 411cabf79e upstream.

Commit e82b89a6f1 used strcat instead of
strcpy which can result in an overflow of newlines on the buffer.

Signed-off-by: Prarit Bhargava
Cc: benh@kernel.crashing.org
Cc: ben@decadent.org.uk
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Prarit Bhargava 2013-10-17 08:00:11 -04:00 committed by Greg Kroah-Hartman
parent ae4c6cbd0a
commit a2db1eb679

View File

@ -1530,12 +1530,12 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
dn = dev->of_node;
if (!dn) {
strcat(buf, "\n");
strcpy(buf, "\n");
return strlen(buf);
}
cp = of_get_property(dn, "compatible", NULL);
if (!cp) {
strcat(buf, "\n");
strcpy(buf, "\n");
return strlen(buf);
}