lkml.org 
[lkml]   [2015]   [May]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/1] dmaengine: pl330: Initialize pl330 for pl330_prep_dma_memcpy after NULL check of pch
On Tue, May 26, 2015 at 12:40:05AM +0530, Maninder Singh wrote:
> From: Maninder Singh <maninder1.s@samsung.com>
>
> Currently pch pointer is already dereferenced before NULL check
> and thus we are getting below warning:
> warn: variable dereferenced before check 'pch'
>
> So initialize struct pl330_dmac *pl330 after NULL check
> of dma_pl330_chan *pch.
>

Applied, thanks

--
~Vinod

> Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
> Reviewed-by: Vaneet Narang <v.narang@samsung.com>
> ---
> drivers/dma/pl330.c | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
> diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
> index a7d9d30..7e27144 100644
> --- a/drivers/dma/pl330.c
> +++ b/drivers/dma/pl330.c
> @@ -2581,12 +2581,14 @@ pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst,
> {
> struct dma_pl330_desc *desc;
> struct dma_pl330_chan *pch = to_pchan(chan);
> - struct pl330_dmac *pl330 = pch->dmac;
> + struct pl330_dmac *pl330;
> int burst;
>
> if (unlikely(!pch || !len))
> return NULL;
>
> + pl330 = pch->dmac;
> +
> desc = __pl330_prep_dma_memcpy(pch, dst, src, len);
> if (!desc)
> return NULL;
> --
> 1.7.1

--


\
 
 \ /
  Last update: 2015-05-25 19:41    [W:0.093 / U:0.348 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site