net/9p/trans_fd.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/net/9p/trans_fd.c b/net/9p/trans_fd.c
index c85109d..078eb16 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -222,7 +222,7 @@
}
}
-static unsigned int
+static int
p9_fd_poll(struct p9_client *client, struct poll_table_struct *pt)
{
int ret, n;