[PATCH v2 1/2] hwrng: fetch randomness only after device init

Jason Cooper
Wed, 09 Jul 2014 11:53:17 -0000

On Sat, Jul 05, 2014 at 11:04:52AM +0530, Amit Shah
wrote:
> Commit d9e7972619334 "hwrng: add randomness to system from rng
sources"
> added a call to rng_get_data() from the hwrng_register() function.
> However, some rng devices need initialization before data can be read
> from them.
>
> This commit makes the call to rng_get_data() depend on no init fn
> pointer being registered by the device.  If an init function is
> registered, this call is made after device init.
>
> CC: Kees Cook <keescook at chromium.org>
> CC: Jason Cooper <jason at lakedaemon.net>
> CC: Herbert Xu <herbert at gondor.apana.org.au>
> CC: <stable at vger.kernel.org> # For v3.15+
> Signed-off-by: Amit Shah <amit.shah at redhat.com>
> ---
>  drivers/char/hw_random/core.c | 31 +++++++++++++++++++++++++------
>  1 file changed, 25 insertions(+), 6 deletions(-)

Thanks for cleaning this up!

Reviewed-by: Jason Cooper <jason at lakedaemon.net>

thx,

Jason.