[U-Boot] clk: sandbox: don't check clk ID against 0

[Tom Rini]

On Tue, Jun 21, 2016 at 01:32:07PM -0600, Stephen Warren wrote:

> From: Stephen Warren <swarren at nvidia.com>
> 
> clk->id is unsigned, so it can't be < 0. Remove the check for that.
> 
> FWIW, this issue was introduced when the clock API converted e.g.
> clk_get_rate()'s clock ID parameter from an int to an unsigned long
> (with a struct clk), without removing this check.
> 
> Fixes: 135aa9500264 ("clk: convert API to match reset/mailbox style")
> Reported-by: Coverity Scan
> Signed-off-by: Stephen Warren <swarren at nvidia.com>
> Acked-by: Simon Glass <sjg at chromium.org>

Applied to u-boot/master, thanks!

-- 
Tom
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