[PATCH 1/2] clk: at91: pmc: do not continue if compatible not located

From: Claudiu Beznea
Date: Sun May 03 2020 - 08:31:02 EST


pmc_register_ops() is called for all AT91 devices. Return
-ENODEV in case of_find_matching_node() returns NULL.

Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
---
drivers/clk/at91/pmc.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
index b71515acdec1..bf0570e66fc1 100644
--- a/drivers/clk/at91/pmc.c
+++ b/drivers/clk/at91/pmc.c
@@ -274,6 +274,8 @@ static int __init pmc_register_ops(void)
struct device_node *np;

np = of_find_matching_node(NULL, sama5d2_pmc_dt_ids);
+ if (!np)
+ return -ENODEV;

pmcreg = device_node_to_regmap(np);
if (IS_ERR(pmcreg))
--
2.7.4