[PATCH 4.7 105/141] brcmsmac: Initialize power in brcms_c_stf_ss_algo_channel_get()

From: Greg Kroah-Hartman
Date: Thu Oct 06 2016 - 05:42:23 EST

4.7-stable review patch. If anyone has any objections, please let me know.


From: Florian Fainelli <f.fainelli@xxxxxxxxx>

commit f823a2aa8f4674c095a5413b9e3ba12d82df06f2 upstream.

wlc_phy_txpower_get_current() does a logical OR of power->flags, which
presumes that power.flags was initiliazed earlier by the caller,
unfortunately, this is not the case, so make sure we zero out the struct
tx_power before calling into wlc_phy_txpower_get_current().

Reported-by: coverity (CID 146011)
Fixes: 5b435de0d7868 ("net: wireless: add brcm80211 drivers")
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Acked-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/net/wireless/broadcom/brcm80211/brcmsmac/stf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/stf.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/stf.c
@@ -87,7 +87,7 @@ void
brcms_c_stf_ss_algo_channel_get(struct brcms_c_info *wlc, u16 *ss_algo_channel,
u16 chanspec)
- struct tx_power power;
+ struct tx_power power = { };
u8 siso_mcs_id, cdd_mcs_id, stbc_mcs_id;

/* Clear previous settings */