From: Timo Sirainen <tss@iki.fi>
Date: Tue, 20 Jul 2010 16:21:29 +0000 (+0100)
Subject: lib-storage: Fixed hooks with plugins that didn't override any vfuncs
X-Git-Tag: 2.0.rc3~6
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=38def99d3e82431da4a48723784f895a1cd1fb5d;p=thirdparty%2Fdovecot%2Fcore.git

lib-storage: Fixed hooks with plugins that didn't override any vfuncs
---

diff --git a/src/lib-storage/mail-storage-hooks.c b/src/lib-storage/mail-storage-hooks.c
index abba9e447c..b8b85de8fb 100644
--- a/src/lib-storage/mail-storage-hooks.c
+++ b/src/lib-storage/mail-storage-hooks.c
@@ -203,6 +203,11 @@ static void hook_build_update(struct hook_build_context *ctx, void *_vlast)
 	void (**vlast)() = _vlast;
 	struct hook_stack *stack;
 
+	if (ctx->tail->vfuncs == vlast) {
+		/* no vfuncs overridden */
+		return;
+	}
+
 	/* ctx->vfuncs_stack->vfuncs points to the root vfuncs,
 	   ctx->vfuncs_stack->next->vfuncs points to the first super function
 	   that is being called, and so on.