X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fblock%2Fparide%2Fpg.c;h=bfbd4c852dd9560d847766bf3db1cdd53c1ecb9e;hb=e09b41010ba33a20a87472ee821fa407a5b8da36;hp=876d0c3eaf5881087daa6b3b640c43749d26e9f4;hpb=f93b97fd65072de626c074dbe099a1fff05ce060;p=kvmfornfv.git

diff --git a/kernel/drivers/block/paride/pg.c b/kernel/drivers/block/paride/pg.c
index 876d0c3ea..bfbd4c852 100644
--- a/kernel/drivers/block/paride/pg.c
+++ b/kernel/drivers/block/paride/pg.c
@@ -227,6 +227,7 @@ static int pg_identify(struct pg *dev, int log);
 static char pg_scratch[512];	/* scratch block buffer */
 
 static struct class *pg_class;
+static void *par_drv;		/* reference of parport driver */
 
 /* kernel glue structures */
 
@@ -481,6 +482,12 @@ static int pg_detect(void)
 
 	printk("%s: %s version %s, major %d\n", name, name, PG_VERSION, major);
 
+	par_drv = pi_register_driver(name);
+	if (!par_drv) {
+		pr_err("failed to register %s driver\n", name);
+		return -1;
+	}
+
 	k = 0;
 	if (pg_drive_count == 0) {
 		if (pi_init(dev->pi, 1, -1, -1, -1, -1, -1, pg_scratch,
@@ -511,6 +518,7 @@ static int pg_detect(void)
 	if (k)
 		return 0;
 
+	pi_unregister_driver(par_drv);
 	printk("%s: No ATAPI device detected\n", name);
 	return -1;
 }