diff options
Diffstat (limited to 'sys/arm/at91/at91_st.c')
| -rw-r--r-- | sys/arm/at91/at91_st.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/sys/arm/at91/at91_st.c b/sys/arm/at91/at91_st.c index 7b63af1..8b61c78 100644 --- a/sys/arm/at91/at91_st.c +++ b/sys/arm/at91/at91_st.c @@ -170,10 +170,15 @@ at91st_watchdog(void *argp, u_int cmd, int *error) uint32_t wdog; int t; - wdog = 0; t = cmd & WD_INTERVAL; - if (cmd != 0 && t >= 22 && t <= 37) + if (cmd > 0 && t >= 22 && t <= 37) { wdog = (1 << (t - 22)) | ST_WDMR_RSTEN; + *error = 0; + } else { + wdog = 0; + if (cmd > 0) + *error = EINVAL; + } WR4(ST_WDMR, wdog); WR4(ST_CR, ST_CR_WDRST); } |
