Re: [PATCH] misc: fastrpc: fix memory leak in fastrpc_channel_ctx_free

[Eddie Lin]

Thanks for the review.

I will address these points in v2, specifically adding the Fixes tag,
adding cc:stable, and cleaning up the cover letter to reflect that
this is a single patch.

Best regards,
Eddie Lin

On Fri, Jun 12, 2026 at 03:44:42AM +0300, Dmitry Baryshkov wrote:
> On Thu, Jun 11, 2026 at 02:21:44AM -0700, Eddie Lin wrote:
> > The 'ctx_idr' is initialized but never destroyed when
> > the channel context is freed, leading to a memory leak.
> > Add idr_destroy() to properly clean up the IDR resources.
> > 
> > Signed-off-by: Eddie Lin <eddie.lin@xxxxxxxxxxxxxxxx>
> 
> Missing Fixes and cc:stable.
> 
> > ---
> > This patch series fixes a memory leak in the FastRPC driver.
> 
> It's a single patch, there is no series.
> 
> > The channel context's IDR was not being destroyed during cleanup.
> 
> Duplicate info.
> 
> > ---
> >  drivers/misc/fastrpc.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
> > index a9b2ae44c06f..7727850e9240 100644
> > --- a/drivers/misc/fastrpc.c
> > +++ b/drivers/misc/fastrpc.c
> > @@ -492,6 +492,7 @@ static void fastrpc_channel_ctx_free(struct kref *ref)
> >  
> >  	cctx = container_of(ref, struct fastrpc_channel_ctx, refcount);
> >  
> > +	idr_destroy(&cctx->ctx_idr);
> >  	kfree(cctx);
> >  }
> >  
> > 
> > ---
> > base-commit: abe651837cb394f76d738a7a747322fca3bf17ba
> > change-id: 20260611-fastrpc-cctx-cleanup-bfd20aa7b8a0
> > 
> > Best regards,
> > --  
> > Eddie Lin <eddie.lin@xxxxxxxxxxxxxxxx>
> > 
> 
> -- 
> With best wishes
> Dmitry