From 43a598d5e40485fcfbebe0700077e83afd803ed5 Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Tue, 30 Nov 2010 14:58:46 +0200 Subject: [PATCH] wl12xx: fix illegal memset if debugfs is not enabled If we try to reset the debugfs statistics when debugfs is not configured in the kernel, we're memset an illegal pointer, because it has never been allocated. So check whether we have debugfs enabled by looking into the wl->rootdir before trying to reset the fw_stats struct. Reported-by: Joerie de Gram Signed-off-by: Luciano Coelho --- drivers/net/wireless/wl12xx/debugfs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c index 2ac289e51484..8106a6c8a1ba 100644 --- a/drivers/net/wireless/wl12xx/debugfs.c +++ b/drivers/net/wireless/wl12xx/debugfs.c @@ -414,6 +414,9 @@ err: void wl1271_debugfs_reset(struct wl1271 *wl) { + if (!wl->rootdir) + return; + memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats)); wl->stats.retry_count = 0; wl->stats.excessive_retries = 0; -- 2.20.1