If 'clk_hw_register()' fails, it is likely that we expect to return an error instead of a valid pointer (which would mean success). 'clk_hw_register()' returns a bool, so we don't have the detail of the error. Return -ENOMEM instead, as it seems to be the most common error returned by clk_register().
Fix commit f5644f10dcfb ("clk: at91: Migrate to clk_hw based registration and OF APIs") Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr> --- It is likely that a bigger change is needed. For example using clk_register instead of clk_hw_register would return the error instead of a bool. We could then propagate this error to the caller without the need to choose an arbitrary error value. This proposal is un-compiled and un-tested. I get an error when I run 'make drivers/clk/at91/' which is likely due to my building environment. --- drivers/clk/at91/clk-programmable.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/at91/clk-programmable.c b/drivers/clk/at91/clk-programmable.c index 190122e64a3a..2cf200e22d48 100644 --- a/drivers/clk/at91/clk-programmable.c +++ b/drivers/clk/at91/clk-programmable.c @@ -203,7 +203,7 @@ at91_clk_register_programmable(struct regmap *regmap, ret = clk_hw_register(NULL, &prog->hw); if (ret) { kfree(prog); - hw = &prog->hw; + hw = ERR_PTR(-ENOMEM); } return hw; -- 2.7.4