Re: [PATCH] fpga: fpga-bridge: remove unnecessary null check in of_fpga_bridge_get

From: Moritz Fischer
Date: Sat Oct 28 2017 - 13:15:58 EST


On Fri, Oct 27, 2017 at 08:19:51PM +0000, Gustavo A. R. Silva wrote:
> Notice that bridge = to_fpga_bridge(dev); expands to:
>
> bridge = container_of(dev, struct fpga_bridge, dev);
>
> and container_of is never null, so this null check is
> unnecessary.
>
> Addresses-Coverity-ID: 1397912
> Reported-by: Alan Tull <atull@xxxxxxxxxx>
> Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>
Reviewed-by: Moritz Fischer <mdf@xxxxxxxxxx>
> ---
> drivers/fpga/fpga-bridge.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/fpga/fpga-bridge.c b/drivers/fpga/fpga-bridge.c
> index 9651aa5..409d1ac 100644
> --- a/drivers/fpga/fpga-bridge.c
> +++ b/drivers/fpga/fpga-bridge.c
> @@ -94,8 +94,6 @@ struct fpga_bridge *of_fpga_bridge_get(struct device_node *np,
> goto err_dev;
>
> bridge = to_fpga_bridge(dev);
> - if (!bridge)
> - goto err_dev;
>
> bridge->info = info;
>
> --
> 2.7.4
>
> --
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Thanks for the fix,

Moritz