mwifiex: fix potential out-of-boundary access to ibss rate table

smatch found this error:

CHECK   drivers/net/wireless/mwifiex/join.c
  drivers/net/wireless/mwifiex/join.c:1121
  mwifiex_cmd_802_11_ad_hoc_join()
  error: testing array offset 'i' after use.

Cc: <stable@vger.kernel.org> # 3.0+
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bing Zhao 2013-03-07 20:00:16 -08:00 committed by John W. Linville
parent 930df2dfc7
commit 5f0fabf84d

View File

@ -1117,10 +1117,9 @@ mwifiex_cmd_802_11_ad_hoc_join(struct mwifiex_private *priv,
adhoc_join->bss_descriptor.bssid,
adhoc_join->bss_descriptor.ssid);
for (i = 0; bss_desc->supported_rates[i] &&
i < MWIFIEX_SUPPORTED_RATES;
i++)
;
for (i = 0; i < MWIFIEX_SUPPORTED_RATES &&
bss_desc->supported_rates[i]; i++)
;
rates_size = i;
/* Copy Data Rates from the Rates recorded in scan response */