linux

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Ralph Wuerthner 893f112866 [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>

2008-04-17 07:47:02 +02:00

amd-rng.c

[HWRNG]: move status polling loop to data_present callbacks

2008-01-11 08:16:16 +11:00

core.c

[S390] hw_random: allow rng_dev_read() to return hardware errors.

2008-04-17 07:47:02 +02:00

geode-rng.c

[HWRNG]: move status polling loop to data_present callbacks

2008-01-11 08:16:16 +11:00

intel-rng.c

[HWRNG]: move status polling loop to data_present callbacks