rt2x00: Check permissions on debugfs write

From: Ivo van Doorn <[email protected]>
Date: Fri, 20 Jul 2007 16:36:42 +0200
Subject: [PATCH 01/11] rt2x00: Check permissions on debugfs write

When writing to the registers through debugfs the capabilities should be checked for CAP_NET_ADMIN.

---
 drivers/net/wireless/mac80211/rt2x00/rt2x00debug.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

index cb61870..e99d783 100644
@@ -152,6 +152,9 @@ static ssize_t rt2x00debug_file_write(void *device, const char __user *buf,
 	int size;
 	char *line;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	line = kzalloc(length, GFP_KERNEL);
 	if (!line)
 		return -ENOMEM;

1.5.2.2