patch-2.3.99-pre4 linux/drivers/block/rd.c

• Lines: 10
• Date: Sun Apr 9 08:12:56 2000
• Orig file: v2.3.99-pre3/linux/drivers/block/rd.c
• Orig date: Fri Mar 10 16:40:42 2000

diff -u --recursive --new-file v2.3.99-pre3/linux/drivers/block/rd.c linux/drivers/block/rd.c
@@ -333,7 +333,8 @@
 	 * Immunize device against invalidate_buffers() and prune_icache().
 	 */
 	if (rd_inode[DEVICE_NR(inode->i_rdev)] == NULL) {
-		if((rd_inode[DEVICE_NR(inode->i_rdev)] = igrab(inode)) != NULL)
+		if (!inode->i_bdev) return -ENXIO;
+		if ((rd_inode[DEVICE_NR(inode->i_rdev)] = igrab(inode)) != NULL)
 			atomic_inc(&rd_inode[DEVICE_NR(inode->i_rdev)]->i_bdev->bd_openers);
 	}