Change linker_reference_module() so that it's passed a struct

mod_depend * (which may be NULL).  The only consumer of this
function at the moment is digi_loadmoduledata(), and that passes
a NULL mod_depend *.

In linker_reference_module(), check to see if we've already got
the required module loaded.  If we have, bump the reference count
and return that, otherwise continue the module search as normal.

1 files changed, 8 insertions, 2 deletions

diff --git a/sys/dev/digi/digi.c b/sys/dev/digi/digi.c
index 90ba01c..18ea046 100644
--- a/sys/dev/digi/digi.c
+++ b/sys/dev/digi/digi.c
@@ -1028,8 +1028,14 @@ digi_loadmoduledata(struct digi_softc *sc)
 	modlen = strlen(sc->module);
 	modfile = malloc(modlen + 6, M_TEMP, M_WAITOK);
 	snprintf(modfile, modlen + 6, "digi_%s", sc->module);
-	if ((res = linker_reference_module(modfile, &lf)) != 0)
-		printf("%s: Failed %d to load module\n", modfile, res);
+	if ((res = linker_reference_module(modfile, NULL, &lf)) != 0) {
+		if (res == ENOENT && rootdev == NODEV)
+			printf("%s: Failed to autoload module: No filesystem\n",
+			    modfile);
+		else
+			printf("%s: Failed %d to autoload module\n", modfile,
+			    res);
+	}
 	free(modfile, M_TEMP);
 	if (res != 0)
 		return (res);