bus.c: verify if template exists on driver register

Signed-off-by: Federico Vaga <federico.vaga@gmail.com> Acked-by: Alessandro Rubini <rubini@gnudd.com>

bus.c: verify if template exists on driver register
Signed-off-by: Federico Vaga <federico.vaga@gmail.com> Acked-by: Alessandro Rubini <rubini@gnudd.com>
afc3c161 · Federico Vaga · d90fe8d1 · afc3c161
Commit afc3c161 authored Feb 04, 2013 by Federico Vaga
Hide whitespace changes
Inline Side-by-side

Showing with 5 additions and 0 deletions

bus.c bus.c +5 -0

No files found.
--- a/bus.c
+++ b/bus.c
@@ -205,6 +205,11 @@ static int _zdev_template_check_and_init(struct zio_device *zdev,
 	int i;

 	pr_debug("%s:%d\n", __func__, __LINE__);
+	if (!zdev) {
+		pr_err("%s:%d missing zio_device template\n",
+				__func__, __LINE__);
+		return -EINVAL;
+	}
 	if (!zdev->owner) {
 		/* FIXME I can use driver->owner */
 		dev_err(&zdev->head.dev, "device template %s has no owner\n",