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authorJohannes Berg <johannes@sipsolutions.net>2008-10-08 10:23:48 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-10-14 20:48:25 -0400
commit33c0360bf74d5fded34cb08d3512ada32ad661e4 (patch)
treec98eeeede4a08d4331c4cb1bac044c249ac6bcc5 /net/wireless
parentc74e90a9e37c4a3923905189a6ebbd7ef61e6e67 (diff)
cfg80211: fix debugfs error handling
If something goes wrong creating the debugfs dir or when debugfs is not compiled in, the current code might lead to trouble; make it more robust. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/core.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 24fdd4cd22cb..5031db7b275b 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -184,7 +184,8 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
if (result)
goto out_unlock;
- if (!debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
+ if (rdev->wiphy.debugfsdir &&
+ !debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
rdev->wiphy.debugfsdir,
rdev->wiphy.debugfsdir->d_parent,
newname))
@@ -317,6 +318,8 @@ int wiphy_register(struct wiphy *wiphy)
drv->wiphy.debugfsdir =
debugfs_create_dir(wiphy_name(&drv->wiphy),
ieee80211_debugfs_dir);
+ if (IS_ERR(drv->wiphy.debugfsdir))
+ drv->wiphy.debugfsdir = NULL;
res = 0;
out_unlock:

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