drivers/atm/firestream.c: Fix unsigned return type
authorJulia Lawall <julia@diku.dk>
Sun, 5 Sep 2010 09:00:23 +0000 (09:00 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 7 Sep 2010 01:48:42 +0000 (18:48 -0700)
commita0ece28539d49c9bdcc6da0bbb26771dceb57581
treec16f0a52b3008a315b1d814ced5a295afe12ce8d
parent29af9309dba25077f711f5f975977714bc43a0c3
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>
drivers/atm/firestream.c