From: Chen Gang Date: Mon, 25 Feb 2013 17:43:25 +0000 (+0000) Subject: drivers/tty/hvc: Use strlcpy instead of strncpy X-Git-Tag: v3.12-rc1~1272^2~6 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9276dfd27897a0b29d8b5814f39a1f82f56b6b6b;p=kernel%2Fkernel-generic.git 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: Chen Gang Signed-off-by: Benjamin Herrenschmidt --- diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c index 1956593..81e939e 100644 --- a/drivers/tty/hvc/hvcs.c +++ b/drivers/tty/hvc/hvcs.c @@ -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)); } /*