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[ Upstream commit1d9e93fad5] Code should first check for valid value of array offset, then use it as the index. Fixes smatch warning: drivers/memory/brcmstb_dpfe.c:443 __send_command() error: testing array offset 'cmd' after use. Fixes:2f330caff5("memory: brcmstb: Add driver for DPFE") Acked-by: Markus Mayer <mmayer@broadcom.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://lore.kernel.org/r/20230513112931.176066-1-krzysztof.kozlowski@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>