commit bd414ee605ff3ac5fcd79f57269a897879ee4cde
author Jan Engelhardt <jengelh@medozas.de> Tue Mar 23 16:35:56 2010 +0100
committer Jan Engelhardt <jengelh@medozas.de> Thu Mar 25 16:55:24 2010 +0100
tree 3cff5d1f3fd43791341e9cde23dabb4dfbc94bd3
parent 135367b8f6a18507af6b9a6910a14b5699415309

netfilter: xtables: change matches to return error code

The following semantic patch does part of the transformation:
// <smpl>
@ rule1 @
struct xt_match ops;
identifier check;
@@
 ops.checkentry = check;

@@
identifier rule1.check;
@@
 check(...) { <...
-return true;
+return 0;
 ...> }

@@
identifier rule1.check;
@@
 check(...) { <...
-return false;
+return -EINVAL;
 ...> }
// </smpl>

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>

net/netfilter/xt_sctp.c

diff --git a/net/netfilter/xt_sctp.c b/net/netfilter/xt_sctp.c
index 5037a7a..c3694df 100644
--- a/net/netfilter/xt_sctp.c
+++ b/net/netfilter/xt_sctp.c
@@ -149,17 +149,17 @@
 	const struct xt_sctp_info *info = par->matchinfo;
 
 	if (info->flags & ~XT_SCTP_VALID_FLAGS)
-		return false;
+		return -EINVAL;
 	if (info->invflags & ~XT_SCTP_VALID_FLAGS)
-		return false;
+		return -EINVAL;
 	if (info->invflags & ~info->flags)
-		return false;
+		return -EINVAL;
 	if (!(info->flags & XT_SCTP_CHUNK_TYPES))
-		return true;
+		return 0;
 	if (info->chunk_match_type & (SCTP_CHUNK_MATCH_ALL |
 	    SCTP_CHUNK_MATCH_ANY | SCTP_CHUNK_MATCH_ONLY))
-		return true;
-	return false;
+		return 0;
+	return -EINVAL;
 }
 
 static struct xt_match sctp_mt_reg[] __read_mostly = {