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authorSebastian Ott <sebott@linux.vnet.ibm.com>2010-10-29 16:50:44 +0200
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-10-29 16:50:50 +0200
commitf2166bb117952404689f0dc42624ee0b54a66e5e (patch)
treed77eebb80e4f0206a07f574ecd2af87f745d4bc3 /drivers/s390/char
parent196339f1733726ffd69ab81ec1c66678585f5846 (diff)
downloadlinux-f2166bb117952404689f0dc42624ee0b54a66e5e.tar.gz
[S390] tape: fix dbf usage
Get rid of the format string "%s" usage with volatile strings
to prevent use after free errors in the s390dbf.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/char')
-rw-r--r--drivers/s390/char/tape_core.c9
-rw-r--r--drivers/s390/char/tape_std.c4
2 files changed, 6 insertions, 7 deletions
diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index 29c2d73d719d..6c408670e08d 100644
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -1077,15 +1077,14 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 		/* FIXME: What to do with the request? */
 		switch (PTR_ERR(irb)) {
 			case -ETIMEDOUT:
-				DBF_LH(1, "(%s): Request timed out\n",
-					dev_name(&cdev->dev));
+				DBF_LH(1, "(%08x): Request timed out\n",
+				       device->cdev_id);
 			case -EIO:
 				__tape_end_request(device, request, -EIO);
 				break;
 			default:
-				DBF_LH(1, "(%s): Unexpected i/o error %li\n",
-					dev_name(&cdev->dev),
-					PTR_ERR(irb));
+				DBF_LH(1, "(%08x): Unexpected i/o error %li\n",
+				       device->cdev_id,	PTR_ERR(irb));
 		}
 		return;
 	}
diff --git a/drivers/s390/char/tape_std.c b/drivers/s390/char/tape_std.c
index 03f07e5dd6e9..3c3f342149ec 100644
--- a/drivers/s390/char/tape_std.c
+++ b/drivers/s390/char/tape_std.c
@@ -47,8 +47,8 @@ tape_std_assign_timeout(unsigned long data)
 			device->cdev_id);
 	rc = tape_cancel_io(device, request);
 	if(rc)
-		DBF_EVENT(3, "(%s): Assign timeout: Cancel failed with rc = %i\n",
-			dev_name(&device->cdev->dev), rc);
+		DBF_EVENT(3, "(%08x): Assign timeout: Cancel failed with rc = "
+			  "%i\n", device->cdev_id, rc);
 }
 
 int