If we try to stop a scheduled scan while it is not running, we should return -ENOENT instead of simply ignoring the command and returning success. This is more consistent with other parts of the code. Reported-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx> Signed-off-by: Luciano Coelho <coelho@xxxxxx> --- include/linux/nl80211.h | 3 ++- net/wireless/scan.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index 3ec2f94..8cb025a 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -247,7 +247,8 @@ * passed, all channels allowed for the current regulatory domain * are used. Extra IEs can also be passed from the userspace by * using the %NL80211_ATTR_IE attribute. - * @NL80211_CMD_STOP_SCHED_SCAN: stop a scheduled scan + * @NL80211_CMD_STOP_SCHED_SCAN: stop a scheduled scan. Returns -ENOENT + * if scheduled scan is not running. * @NL80211_CMD_SCHED_SCAN_RESULTS: indicates that there are scheduled scan * results available. * @NL80211_CMD_SCHED_SCAN_STOPPED: indicates that the scheduled scan has diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 2cc9d4a..1c4672e 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -137,7 +137,7 @@ int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, lockdep_assert_held(&rdev->sched_scan_mtx); if (!rdev->sched_scan_req) - return 0; + return -ENOENT; dev = rdev->sched_scan_req->dev; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
