clocksource/drivers/asm9260: Add a check for of_clk_get

[ Upstream commit 6e001f6a4cc73cd06fc7b8c633bc4906c33dd8ad ]

asm9260_timer_init misses a check for of_clk_get.
Add a check for it and print errors like other clocksource drivers.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191016124330.22211-1-hslester96@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/clocksource/asm9260_timer.c b/drivers/clocksource/asm9260_timer.c
index 9f09a59161e70b8f0d4dacf017ddc0e2fbfdd98b..5b39d3701fa3c91825c8fd4bf6f405f1bc771125 100644 (file)
--- a/drivers/clocksource/asm9260_timer.c
+++ b/drivers/clocksource/asm9260_timer.c
@@ -194,6 +194,10 @@ static int __init asm9260_timer_init(struct device_node *np)
        }
 
        clk = of_clk_get(np, 0);
+       if (IS_ERR(clk)) {
+               pr_err("Failed to get clk!\n");
+               return PTR_ERR(clk);
+       }
 
        ret = clk_prepare_enable(clk);
        if (ret) {