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cfg80211: return -ENOENT when stopping sched_scan while not running 

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@sipsolutions.net>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luciano Coelho 2011-07-08 11:16:16 +03:00 committed by John W. Linville
parent 331c5ea2d9
commit 1a84ff7564
2 changed files with 3 additions and 2 deletions
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3
include/linux/nl80211.h
View File

@ -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

2
net/wireless/scan.c
View File

@ -137,7 +137,7 @@ int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
ASSERT_RDEV_LOCK(rdev);
if (!rdev->sched_scan_req)
return 0;
return -ENOENT;
dev = rdev->sched_scan_req->dev;