From: Eyal Shapira <eyal@wizery.com>
Date: Tue, 12 Aug 2014 21:26:17 +0000 (+0300)
Subject: iwlwifi: mvm: fix an overflow in iwl_mvm_get_signal_strength
X-Git-Tag: fixes-for-v3.18-merge-window~87^2~35^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2cddddc56a1179aa71b460ad616176c237d4a243;p=pandora-kernel.git

iwlwifi: mvm: fix an overflow in iwl_mvm_get_signal_strength

The idea here is to translate a value of 0 received from
the firmware to the lowest rssi figure. As rx_status->chain_signal
is a signed byte the lowest possible value is -128 and not -256.
-256 was causing 0 to get stored in the signed byte.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---

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