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authorChen Gang <gang.chen@asianux.com>2013-02-25 17:43:25 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-03-05 16:56:27 +1100
commit9276dfd27897a0b29d8b5814f39a1f82f56b6b6b (patch)
tree2a34180edd2663c594212aa8e51fa909a359692e /drivers
parent6b6680c4ea3952af8ae76915cbca41245147741b (diff)
downloadvexpress-lsk-9276dfd27897a0b29d8b5814f39a1f82f56b6b6b.tar.gz
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 <gang.chen@asianux.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/tty/hvc/hvcs.c9
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index 1956593ee89..81e939e90c4 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));
}
/*