X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fs390%2Fblock%2Fdasd_genhd.c;h=47ba4462708de9583cadef43f4cd0995567e7878;hb=49e1900d4cc2e7bcecb681fe60f0990bec2dcce8;hp=12c7d296eaa8a6bcbb9268d4b38494e1e5a68535;hpb=075395d228641646159dae3dd170fa3fc6ff477a;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index 12c7d296eaa..47ba4462708 100644
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -83,10 +83,12 @@ dasd_gendisk_alloc(struct dasd_device *device)
 void
 dasd_gendisk_free(struct dasd_device *device)
 {
-	del_gendisk(device->gdp);
-	device->gdp->queue = 0;
-	put_disk(device->gdp);
-	device->gdp = 0;
+	if (device->gdp) {
+		del_gendisk(device->gdp);
+		device->gdp->queue = NULL;
+		put_disk(device->gdp);
+		device->gdp = NULL;
+	}
 }
 
 /*
@@ -136,7 +138,7 @@ dasd_destroy_partitions(struct dasd_device * device)
 	 * device->bdev to lower the offline open_count limit again.
 	 */
 	bdev = device->bdev;
-	device->bdev = 0;
+	device->bdev = NULL;
 
 	/*
 	 * See fs/partition/check.c:delete_partition
@@ -145,7 +147,7 @@ dasd_destroy_partitions(struct dasd_device * device)
 	 */
 	memset(&bpart, 0, sizeof(struct blkpg_partition));
 	memset(&barg, 0, sizeof(struct blkpg_ioctl_arg));
-	barg.data = &bpart;
+	barg.data = (void __force __user *) &bpart;
 	barg.op = BLKPG_DEL_PARTITION;
 	for (bpart.pno = device->gdp->minors - 1; bpart.pno > 0; bpart.pno--)
 		ioctl_by_bdev(bdev, BLKPG, (unsigned long) &barg);