diff options
| author | Chen Gang <gang.chen@asianux.com> | 2013-02-25 18:43:25 +0100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-03-05 06:56:27 +0100 |
| commit | 9276dfd27897a0b29d8b5814f39a1f82f56b6b6b (patch) | |
| tree | 2a34180edd2663c594212aa8e51fa909a359692e /drivers/tty/hvc/hvcs.c | |
| parent | powerpc/pseries/hvcserver: Fix strncpy buffer limit in location code (diff) | |
| download | linux-9276dfd27897a0b29d8b5814f39a1f82f56b6b6b.tar.xz linux-9276dfd27897a0b29d8b5814f39a1f82f56b6b6b.zip | |
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/tty/hvc/hvcs.c')
| -rw-r--r-- | drivers/tty/hvc/hvcs.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c index 1956593ee89d..81e939e90c4c 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)); } /* |