ray_cs: Fix copy_from_user handling

commit 575c9ed7798218dc923f319c0d78f0c25ca506b9 upstream.

I've not touched the other stuff here but the word "locking" comes to mind.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 963960dc30f206494f9420a7cb3f799d5b931080..eef4e8678237f1bb632c2c4dc6cdc5d4e6d7dd55 100644 (file)
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -2758,7 +2758,7 @@ static void raycs_write(const char *name, write_proc_t *w, void *data)
 static int write_essid(struct file *file, const char __user *buffer, unsigned long count, void *data)
 {
        static char proc_essid[33];
-       int len = count;
+       unsigned int len = count;
 
        if (len > 32)
                len = 32;