[PATCHv6 07/26] clk: do not attempt to fetch clock pointer with null device

Tero Kristo
2021-06-11T08:47:14Z

Bail out early if device returned for the parent clock is null.
This avoids warning prints like this when doing clk dump:

dev_get_uclass_priv: null device

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tero Kristo <kristo@kernel.org>
---
drivers/clk/clk-uclass.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index 53e7be764d..451d7da001 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -502,6 +502,8 @@ struct clk *clk_get_parent(struct clk *clk)
return NULL;

pdev = dev_get_parent(clk->dev);
+ if (!pdev)
+ return ERR_PTR(-ENODEV);
pclk = dev_get_clk_ptr(pdev);
if (!pclk)
return ERR_PTR(-ENODEV);
--
2.17.1