Commit 9276dfd2 authored by Chen Gang's avatar Chen Gang Committed by Benjamin Herrenschmidt
Browse files

drivers/tty/hvc: Use strlcpy instead of strncpy



when strlen pi->location_code is larger than HVCS_CLC_LENGTH + 1,
    original implementation can not let hvcsd->p_location_code NUL terminated.
  so need fix it (also can simplify the code)
Signed-off-by: default avatarChen Gang <gang.chen@asianux.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 6b6680c4
......@@ -881,17 +881,12 @@ static struct vio_driver hvcs_vio_driver = {
/* Only called from hvcs_get_pi please */
static void hvcs_set_pi(struct hvcs_partner_info *pi, struct hvcs_struct *hvcsd)
{
int clclength;
hvcsd->p_unit_address = pi->unit_address;
hvcsd->p_partition_ID = pi->partition_ID;
clclength = strlen(&pi->location_code[0]);
if (clclength > HVCS_CLC_LENGTH)
clclength = HVCS_CLC_LENGTH;
/* copy the null-term char too */
strncpy(&hvcsd->p_location_code[0],
&pi->location_code[0], clclength + 1);
strlcpy(&hvcsd->p_location_code[0],
&pi->location_code[0], sizeof(hvcsd->p_location_code));
}
/*
......
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment