[PATCH] atm/ambassador: fix return code bug

[Jeff Garzik <jeff@garzik.org>]

While auditing a 'may be used uninitialized' warning, I found a minor
bug:  make_rate() has the standard error code convention -- zero for
success, negative errno on error -- but its return type is defined as
unsigned.

Change the return type to reflect reality.

Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
index 4521a24..da599e6 100644
--- a/drivers/atm/ambassador.c
+++ b/drivers/atm/ambassador.c
@@ -915,8 +915,8 @@ #endif
 
 /********** make rate (not quite as much fun as Horizon) **********/
 
-static unsigned int make_rate (unsigned int rate, rounding r,
-			       u16 * bits, unsigned int * actual) {
+static int make_rate (unsigned int rate, rounding r,
+		      u16 * bits, unsigned int * actual) {
   unsigned char exp = -1; // hush gcc
   unsigned int man = -1;  // hush gcc
   
-
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