Re: [PATCH] dmaengine: dw: fix potential memory leak in dw_dma_parse_dt()

From: Viresh Kumar
Date: Thu Dec 17 2015 - 20:59:12 EST


On 17-12-15, 23:30, Mans Rullgard wrote:
> If the "dma-channels" DT property is missing, the dw_dma_parse_dt()
> function return NULL, but not before allocating memory for a struct
> dw_dma_platform_data through devres. If the device supports parameter
> detection, the probe still succeeds and the allocated memory is not
> released until the device is removed.
>
> Fix this by deferring the allocation until after checking the
> "dma-channels" property.
>
> Signed-off-by: Mans Rullgard <mans@xxxxxxxxx>
> ---
> This has only been compile-tested as I have no suitable hardware.
> ---
> drivers/dma/dw/platform.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)

Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

--
viresh
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