From: Reinette Chatre Date: Tue, 4 Nov 2008 20:21:35 +0000 (-0800) Subject: iwl3945: do not send scan command if channel count zero X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=14b5433606289dbc5b6fd70ced11462f80e95003;p=linux-beck.git 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 Signed-off-by: John W. Linville --- 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;