[patch 19/45] b43: fix b43_plcp_get_bitrate_idx_ofdm return type

[Chris Wright]

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

From: Lorenzo Nava <navalorenx@xxxxxxxxx>

upstream commit: a3c0b87c4f21911fb7185902dd13f0e3cd7f33f7

This patch fixes the return type of b43_plcp_get_bitrate_idx_ofdm. If
the plcp contains an error, the function return value is 255 instead
of -1, and the packet was not dropped. This causes a warning in
__ieee80211_rx function because rate idx is out of range.

Cc: stable@xxxxxxxxxx
Signed-off-by: Lorenzo Nava <navalorenx@xxxxxxxxx>
Signed-off-by: Michael Buesch <mb@xxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>
---
 drivers/net/wireless/b43/xmit.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -50,7 +50,7 @@ static int b43_plcp_get_bitrate_idx_cck(
 }
 
 /* Extract the bitrate index out of an OFDM PLCP header. */
-static u8 b43_plcp_get_bitrate_idx_ofdm(struct b43_plcp_hdr6 *plcp, bool aphy)
+static int b43_plcp_get_bitrate_idx_ofdm(struct b43_plcp_hdr6 *plcp, bool aphy)
 {
 	int base = aphy ? 0 : 4;
 

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