If instead this isn't checked this results in a division by zero later.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
arch/arm/mach-imx/clocksource.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/mach-imx/clocksource.c b/arch/arm/mach-imx/clocksource.c
index 17762c3caf25..793f84ee4800 100644
--- a/arch/arm/mach-imx/clocksource.c
+++ b/arch/arm/mach-imx/clocksource.c
@@ -121,6 +121,10 @@ static int imx_gpt_probe(struct device_d *dev)
dev_err(dev, "failed to get clock\n");
} else {
rate = clk_get_rate(clk_gpt);
+ if (!rate) {
+ dev_err(dev, "clock reports rate == 0\n");
+ return -EIO;
+ }
}
writel(0, timer_base + GPT_TPRER);
--
2.11.0
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