From: Dan Carpenter <error27@gmail.com>
Date: Tue, 21 Dec 2010 04:00:13 +0000 (+0300)
Subject: wl12xx: use after free in debug code
X-Git-Tag: v2.6.39-rc1~468^2~417^2~61^2~34
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0dd386676497fb3097e6fbb3de6090c948c0df30;p=platform%2Fkernel%2Flinux-exynos.git

wl12xx: use after free in debug code

If debugging is turned on, then wl1271_dump() dereferences a freed
variable.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
---

diff --git a/drivers/net/wireless/wl12xx/spi.c b/drivers/net/wireless/wl12xx/spi.c
index 46714910..8f7ea2c 100644
--- a/drivers/net/wireless/wl12xx/spi.c
+++ b/drivers/net/wireless/wl12xx/spi.c
@@ -110,9 +110,9 @@ static void wl1271_spi_reset(struct wl1271 *wl)
 	spi_message_add_tail(&t, &m);
 
 	spi_sync(wl_to_spi(wl), &m);
-	kfree(cmd);
 
 	wl1271_dump(DEBUG_SPI, "spi reset -> ", cmd, WSPI_INIT_CMD_LEN);
+	kfree(cmd);
 }
 
 static void wl1271_spi_init(struct wl1271 *wl)