[PATCH] [v2] media: staging: tegra-vde: fix runtime pm imbalance on error

[Dan Carpenter]

On Thu, May 21, 2020 at 07:42:56PM +0800, dinghao.liu at zju.edu.cn wrote:
> We need to make sure if pm_runtime_get_sync() is designed with
> such behavior before modifying it.  
> 
> I received a response from Rafael when I commited a similar patch:
> https://lkml.org/lkml/2020/5/20/1100
> It seems that this behavior is intentional and needs to be kept.

Yes.  This is why I have said twice or three times to not change
pm_runtime_get_sync() but instead to write a replacement.

A large percent of the callers are buggy.  The pm_runtime_get_sync() is
a -4 on Rusty's API scale.
http://sweng.the-davies.net/Home/rustys-api-design-manifesto
One could argue that anything above a -4 is really a 2 if you read
the implementation thouroughly enough...

regards,
dan carpenter