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[S390] dasd: add sanity check to detect path connection error
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Prevents possible data corruption by detecting cabling error.
Therefor read and compare the UID for all available channel paths.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Stefan Haberland authored and Martin Schwidefsky committed Dec 27, 2011
1 parent e58b0d9 commit b206181
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