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authorReinette Chatre <reinette.chatre@intel.com>2008-11-04 12:21:35 -0800
committerJohn W. Linville <linville@tuxdriver.com>2008-11-06 16:37:12 -0500
commit14b5433606289dbc5b6fd70ced11462f80e95003 (patch)
treed7106b140206fe3b7d4b26ea9b800ab12655c473 /drivers/net
parent2420ebc104d38567ee977a3c15dc675a9dd3b07c (diff)
downloadtalos-op-linux-14b5433606289dbc5b6fd70ced11462f80e95003.tar.gz
talos-op-linux-14b5433606289dbc5b6fd70ced11462f80e95003.zip
iwl3945: do not send scan command if channel count zero
Do not send scan command if no channels to scan. This avoids a Microcode error as reported in: http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1650 http://bugzilla.kernel.org/show_bug.cgi?id=11806 http://marc.info/?l=linux-wireless&m=122437145211886&w=2 Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl3945-base.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index b9eac5551d82..81dfcb882857 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -6256,6 +6256,11 @@ static void iwl3945_bg_request_scan(struct work_struct *data)
n_probes,
(void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
+ if (scan->channel_count == 0) {
+ IWL_DEBUG_SCAN("channel count %d\n", scan->channel_count);
+ goto done;
+ }
+
cmd.len += le16_to_cpu(scan->tx_cmd.len) +
scan->channel_count * sizeof(struct iwl3945_scan_channel);
cmd.data = scan;
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