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In fimc_runtime_resume(), the return value of clk_enable(fimc->clock[CLK_GATE]) was not checked. If enabling the clock fails, subsequent register accesses (fimc_hw_reset() and capture/m2m resume) may trigger a bus error or undefined behavior. Fix this by checking the return value. If clk_enable() fails, return the error immediately, preventing unsafe hardware access. Signed-off-by: Zhaoyang Yu <2426767509@qq.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>