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author | Stefan Weinhuber <wein@de.ibm.com> | 2007-02-05 21:17:04 +0100 |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2007-02-05 21:17:04 +0100 |
commit | e3c699b38ef3c59521fdd1732efcaaa789d81440 (patch) | |
tree | 349eded2ebc023decb01bee6df52d9cd2568478b /arch/s390 | |
parent | dbd8ae63065189b12c46bdc58799dc353e4b3a53 (diff) | |
download | op-kernel-dev-e3c699b38ef3c59521fdd1732efcaaa789d81440.zip op-kernel-dev-e3c699b38ef3c59521fdd1732efcaaa789d81440.tar.gz |
[S390] dasd: fix bug in dasd initialization cleanup
The initialization of the dasd_eer code is one of the last steps of the
dasd driver initialization. When initialization fails in one of the
earlier steps, the dasd_exit function is called to clean up what has been
done so far. So the dasd_eer_exit function may be called, although the
dasd_eer_init function wasn't called before and dasd_eer_exit tries to
unregister a misc device that wasn't registered, which results in a BUG.
Make sure that dasd_eer_exit can be called without initialization. Use a
dynamically allocated struct miscdevice instead of a static one, so we
only try to unregister the device if it exists and was actually registered.
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
0 files changed, 0 insertions, 0 deletions