On Wed, Dec 24, 2014 at 09:56:36AM +1030, Rusty Russell wrote:
>
> I'll have to pull the tree to review it properly, but the theory was
> that the reference count was counting users of the rng. Now I don't
> know what it's counting:
The reference count starts off at zero, meaning that the RNG
has
Herbert Xu writes:
> The kref solution is still buggy because we were only focusing
> on the register/unregister race. The same race affects the
> setting of current_rng through sysfs.
>
> This patch fixes it by using kref_get_unless_zero.
>
> Signed-off-by: Herbert Xu
This patch scares me a li
The kref solution is still buggy because we were only focusing
on the register/unregister race. The same race affects the
setting of current_rng through sysfs.
This patch fixes it by using kref_get_unless_zero.
Signed-off-by: Herbert Xu
---
drivers/char/hw_random/core.c | 14 +++---
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