| commit | 6f3748cccb3c3a02265deb4cd66948d4ce2755d3 | |
| author | John W. Linville <linville@tuxdriver.com> | |
| Mon, 21 Jun 2010 21:14:07 +0000 (21 17:14 -0400) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Tue, 10 Aug 2010 17:54:13 +0000 (10 10:54 -0700) | ||
| tree | e085cf7476040d1620f82bfd4d5307434b8a03a9 | treesnapshot (tar.gz zip) |
| parent | d3ae12acd666aadac7834b0389e4a15046aa4132 | commitdiff |
mac80211: avoid scheduling while atomic in mesh_rx_plink_frame
commit c937019761a758f2749b1f3a032b7a91fb044753 upstream.
While mesh_rx_plink_frame holds sta->lock...
mesh_rx_plink_frame ->
mesh_plink_inc_estab_count ->
ieee80211_bss_info_change_notify
...but ieee80211_bss_info_change_notify is allowed to sleep. A driver
taking advantage of that allowance can cause a scheduling while
atomic bug. Similar paths exist for mesh_plink_dec_estab_count,
so work around those as well.
http://bugzilla.kernel.org/show_bug.cgi?id=16099
Also, correct a minor kerneldoc comment error (mismatched function names).
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit c937019761a758f2749b1f3a032b7a91fb044753 upstream.
While mesh_rx_plink_frame holds sta->lock...
mesh_rx_plink_frame ->
mesh_plink_inc_estab_count ->
ieee80211_bss_info_change_notify
...but ieee80211_bss_info_change_notify is allowed to sleep. A driver
taking advantage of that allowance can cause a scheduling while
atomic bug. Similar paths exist for mesh_plink_dec_estab_count,
so work around those as well.
http://bugzilla.kernel.org/show_bug.cgi?id=16099
Also, correct a minor kerneldoc comment error (mismatched function names).
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| net/mac80211/mesh_plink.c | diffblobblamehistory |