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authorJohannes Berg <johannes.berg@intel.com>2012-07-13 12:57:36 +0400
committerJohn W. Linville <linville@tuxdriver.com>2012-07-17 23:11:31 +0400
commit1924b4e294df4e97ad22557700e554af409569bc (patch)
tree46869522ffaede7244c7b9f30f730072a34d1c4f
parent00267d591b18fb550f0d63dba28daadf69f924fc (diff)
downloadlinux-1924b4e294df4e97ad22557700e554af409569bc.tar.xz
b43: use temporary rate_index for error checking
The mac80211 rate_index changed to be a u8, so can't hold the negative error value properly. Use a temporary variable for error checking. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/b43/xmit.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index b31ccc02fa21..136510edf3cf 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -663,7 +663,7 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
u32 uninitialized_var(macstat);
u16 chanid;
u16 phytype;
- int padding;
+ int padding, rate_idx;
memset(&status, 0, sizeof(status));
@@ -766,16 +766,17 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
}
if (phystat0 & B43_RX_PHYST0_OFDM)
- status.rate_idx = b43_plcp_get_bitrate_idx_ofdm(plcp,
+ rate_idx = b43_plcp_get_bitrate_idx_ofdm(plcp,
phytype == B43_PHYTYPE_A);
else
- status.rate_idx = b43_plcp_get_bitrate_idx_cck(plcp);
- if (unlikely(status.rate_idx == -1)) {
+ rate_idx = b43_plcp_get_bitrate_idx_cck(plcp);
+ if (unlikely(rate_idx == -1)) {
/* PLCP seems to be corrupted.
* Drop the frame, if we are not interested in corrupted frames. */
if (!(dev->wl->filter_flags & FIF_PLCPFAIL))
goto drop;
}
+ status.rate_idx = rate_idx;
status.antenna = !!(phystat0 & B43_RX_PHYST0_ANT);
/*