diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/debug.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c index e2511550fbb8..54cb6292b879 100644 --- a/drivers/net/wireless/ath/ath10k/debug.c +++ b/drivers/net/wireless/ath/ath10k/debug.c @@ -609,25 +609,23 @@ static ssize_t ath10k_write_simulate_fw_crash(struct file *file, char buf[32]; int ret; - mutex_lock(&ar->conf_mutex); - simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); /* make sure that buf is null terminated */ buf[sizeof(buf) - 1] = 0; + /* drop the possible '\n' from the end */ + if (buf[count - 1] == '\n') + buf[count - 1] = 0; + + mutex_lock(&ar->conf_mutex); + if (ar->state != ATH10K_STATE_ON && ar->state != ATH10K_STATE_RESTARTED) { ret = -ENETDOWN; goto exit; } - /* drop the possible '\n' from the end */ - if (buf[count - 1] == '\n') { - buf[count - 1] = 0; - count--; - } - if (!strcmp(buf, "soft")) { ath10k_info(ar, "simulating soft firmware crash\n"); ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0); |