[PATCH] lib: uuid: fix the test on RNG device presence

[Tom Rini]

On Fri, Oct 22, 2021 at 05:05:47PM +0200, Patrick Delaunay wrote:

> Correct the test on RNG device presence,when ret is equal to 0,
> before to call dm_rng_read function.
> 
> Without this patch the RNG device is not used when present (when ret == 0)
> or a data abort occurs in dm_rng_read when CONFIG_DM_RNG is activated but
> the RNG device is not present in device tree (ret != 0 and devp = NULL).
> 
> Fixes: 92fdad28cfdf ("lib: uuid: use RNG device if present")
> CC: Matthias Brugger <mbrugger at suse.com>
> CC: Torsten Duwe <duwe at suse.de>
> Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
> Reviewed-by: Simon Glass <sjg at chromium.org>

Applied to u-boot/master, thanks!

-- 
Tom
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