Messages in this thread | | | Date | Wed, 21 Aug 2013 15:08:16 +0100 | From | Mark Brown <> | Subject | Re: [PATCH] drivers: regmap: bugfix in regcache-rbtree.c |
| |
On Wed, Aug 21, 2013 at 03:14:23PM +0200, David Jander wrote:
> Here's the explanation:
> 1. If a driver initializes a regmap with a RB-tree cache, and starts writing to > registers in some arbitrary order, you might get overlapping rbnodes: > Suppose I have this rb-tree (a real case I happen to have):
> # cat /sys/kernel/debug/regmap/1-000a/rbtree > 2-19 (24) > 4-1b (24)
Like I say this isn't supposed to be the case in the first place, those two nodes should be being merged - what we need to understand is where the overlapping nodes came from. [unhandled content-type:application/pgp-signature] | |