From: Julia Lawall <julia@diku.dk>
Date: Sun, 5 Sep 2010 09:00:23 +0000 (+0000)
Subject: drivers/atm/firestream.c: Fix unsigned return type
X-Git-Tag: MMI-PSA29.97-13-9~21994^2~536
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a0ece28539d49c9bdcc6da0bbb26771dceb57581;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

drivers/atm/firestream.c: Fix unsigned return type

The function has an unsigned return type, but returns a negative constant
to indicate an error condition.  The result of calling the function is
always stored in a variable of type (signed) int, and thus unsigned can be
dropped from the return type.

A sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@exists@
identifier f;
constant C;
@@

 unsigned f(...)
 { <+...
*  return -C;
 ...+> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index 8717809787fb..5d86bb803e94 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -444,8 +444,8 @@ static inline void fs_kfree_skb (struct sk_buff * skb)
 #define ROUND_NEAREST 3
 /********** make rate (not quite as much fun as Horizon) **********/
 
-static unsigned int make_rate (unsigned int rate, int r,
-			       u16 * bits, unsigned int * actual) 
+static int make_rate(unsigned int rate, int r,
+		      u16 *bits, unsigned int *actual)
 {
 	unsigned char exp = -1; /* hush gcc */
 	unsigned int man = -1;  /* hush gcc */