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| author | Johannes Berg <johannes.berg@intel.com> | 2010-04-07 00:21:36 -0700 |
|---|---|---|
| committer | Reinette Chatre <reinette.chatre@intel.com> | 2010-04-16 13:27:10 -0700 |
| commit | 88be026490ed89c2ffead81a52531fbac5507e01 (patch) | |
| tree | 94f8727e5027a09f24623bd4dcecbbbe1be6922a /drivers/net/wireless/iwlwifi/iwl-dev.h | |
| parent | 8b9fce77737ae9983f61ec56cd53f52fb738b2c7 (diff) | |
| download | lwn-88be026490ed89c2ffead81a52531fbac5507e01.tar.gz lwn-88be026490ed89c2ffead81a52531fbac5507e01.zip | |
iwlwifi: fix scan races
When an internal scan is started, nothing protects the
is_internal_short_scan variable which can cause crashes,
cf. https://bugzilla.kernel.org/show_bug.cgi?id=15667.
Fix this by making the short scan request use the mutex
for locking, which requires making the request go to a
work struct so that it can sleep.
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-dev.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-dev.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 6054c5fba0c1..ef1720a852e9 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -1296,6 +1296,7 @@ struct iwl_priv { struct work_struct tt_work; struct work_struct ct_enter; struct work_struct ct_exit; + struct work_struct start_internal_scan; struct tasklet_struct irq_tasklet; |