24 Dec
2015
24 Dec
'15
9:41 p.m.
On Wed, Dec 23, 2015 at 12:48:01PM +0000, Charles Keepax wrote:
commit 9b8ef9f6b3fc ("ASoC: dapm: Add startup & shutdown for dai_links")
Added support for calling startup on CODEC to CODEC links, however this is called with a NULL runtime pointer. There isn't really a sensible way to pass a valid runtime pointer to a CODEC to CODEC link at the moment, so we need to make the startup function safe for NULL runtimes. This patch returns from the Arizona startup function early if there is no runtime.
We need a bit more here about why it's safe to just skip this code - it is actually safe since we're just setting constraints for userspace but that's not something the reader can tell without looking for more context.