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authorMichael Holzheu <holzheu@de.ibm.com>2006-03-24 03:15:27 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-24 07:33:18 -0800
commit4cd190a736a97e302c038bd91357d636369d4c6b (patch)
treec424b0788f70eb3148bc7bedd43008daa3c41560 /drivers/s390
parent842d3fba94ed94cc5de7b712e0f4218ce6e4fd73 (diff)
downloadop-kernel-dev-4cd190a736a97e302c038bd91357d636369d4c6b.zip
op-kernel-dev-4cd190a736a97e302c038bd91357d636369d4c6b.tar.gz
[PATCH] s390: tape operation abortion leads to panic
When a request is aborted because of a signal, we currently stop the request via csh, but we do not wait for the interrupt of csh in any case. We free the request structure and therefore when the interrupt for the csh operation is presented, the request object is no longer valid and an invalid callback pointer is used. To fix this wait until the interrupt for csh arrives and until wait_event_interruptible() does not return -ERESTARTSYS. Signed-off-by: Michael Holzheu <holzheu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/tape_core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index c42f5e2..5d17149 100644
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -1015,7 +1015,7 @@ tape_do_io_interruptible(struct tape_device *device,
wq,
(request->callback == NULL)
);
- } while (rc != -ERESTARTSYS);
+ } while (rc == -ERESTARTSYS);
DBF_EVENT(3, "IO stopped on %08x\n", device->cdev_id);
rc = -ERESTARTSYS;
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