Re: [PATCH] regmap: Make regmap-mmio usable from atomic contexts

[Stephen Warren]

On 05/24/2013 02:29 AM, Lars-Peter Clausen wrote:
> regmap-mmio uses a spinlock with spin_lock() and spin_unlock() for locking.
> To be able to use the regmap API from different contexts (atomic vs non-atomic),
> without the risk of race conditions, we need to use spin_lock_irqsave() and
> spin_lock_irqrestore() instead. A new field, the spinlock_flags field, is added
> to regmap struct to store the flags between regmap_{,un}lock_spinlock(). The
> spinlock_flags field itself is also protected by the spinlock.

Reviewed-by: Stephen Warren <swarren@xxxxxxxxxx>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/