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authorRalph Wuerthner <rwuerthn@de.ibm.com>2008-04-17 07:46:14 +0200
committerHeiko Carstens <heiko.carstens@de.ibm.com>2008-04-17 07:47:02 +0200
commit893f11286644780fc7d6d415e537644da7bdaaf8 (patch)
tree600401989687c7f7815ed119d2420b9228dd7e8d /drivers/crypto/Kconfig
parentc10fde0d9e2112c25052a8742e893ec5965c0007 (diff)
[S390] hw_random: allow rng_dev_read() to return hardware errors.
The api for hardware random number generators is currently limited to devices that never fail. If the hardware is registered as a source for random numbers it has to work. This prevents the use of i/o based random number devices where the i/o might fail. Add a check for errors after the read from a hardware random number device. This patch is required to support large random numbers retrieved from the CEX2C cards on System z. Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'drivers/crypto/Kconfig')
0 files changed, 0 insertions, 0 deletions