On Mon, May 21, 2018 at 05:56:55PM +0100, Fabrizio Castro wrote: > From: Vinod Koul <vinod.koul@xxxxxxxxx> > > commit 757d12e5849be549076901b0d33c60d5f360269c upstream. > > dmaengine has various device callbacks and exposes helper > functions to invoke these. These helpers should check if channel, > device and callback is valid or not before invoking them. > > Reported-by: Jon Hunter <jonathanh@xxxxxxxxxx> > Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx> > [fabrizio: cherry-pick to 4.4] > Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx> > Signed-off-by: Jianming Qiao <jianming.qiao@xxxxxxxxxxxxxx> > --- > Hello Greg, > > while backporting commit 757d12e5849be549076901b0d33c60d5f360269c > to the CIP kernel Ben recommended to send the same patch to you > for 4.4 stable. > I hope the format of the commit is the one you expect (reference to > the upstream commit, version to cherry-pick the patch to, and > Signed-off-by tags). Format is fine, but why is this needed in the 4.4.y kernel tree? What bug does it solve? thanks, greg k-h
