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Staging: rtl8192u: fix some memory corruption 

When we received a command we incremented a stat counter depending on
the type of message.  The problem is there were 8 types of commands but
there were only 4 counters allocated so it corrupted memory past the
end of the rxcmdpkt[] array.

The fix is just to remove the counters because they aren't used.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
ACKed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Carpenter 2012-04-17 23:37:31 +03:00 committed by Greg Kroah-Hartman
parent ed2cb4f3b5
commit f7738eda21
2 changed files with 0 additions and 5 deletions
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1
drivers/staging/rtl8192u/r8192U.h
View File

@ -610,7 +610,6 @@ typedef struct Stats
// unsigned long rxnopointer;
unsigned long rxok;
unsigned long rxframgment;
unsigned long rxcmdpkt[4]; //08/05/08 amy rx cmd element txfeedback/bcn report/cfg set/query
unsigned long rxurberr;
unsigned long rxstaterr;
unsigned long received_rate_histogram[4][32]; //0: Total, 1:OK, 2:CRC, 3:ICV, 2007 07 03 cosa

4
drivers/staging/rtl8192u/r819xU_cmdpkt.c
View File

@ -697,7 +697,6 @@ cmpk_message_handle_rx(
struct ieee80211_rx_stats *pstats)
{
// u32 debug_level = DBG_LOUD;
struct r8192_priv *priv = ieee80211_priv(dev);
int total_length;
u8 cmd_length, exe_cnt = 0;
u8 element_id;
@ -779,9 +778,6 @@ cmpk_message_handle_rx(
// 2007/01/22 MH Add to display tx statistic.
//cmpk_DisplayTxStatistic(pAdapter);
/* 2007/03/09 MH Collect sidderent cmd element pkt num. */
priv->stats.rxcmdpkt[element_id]++;
total_length -= cmd_length;
pcmd_buff += cmd_length;
} /* while (total_length > 0) */