Re: [PATCH 4/9] clk: qcom: Don't reference clk_init_data after registration

From: Taniya Das
Date: Sun Aug 04 2019 - 13:49:53 EST




On 8/1/2019 1:05 AM, Stephen Boyd wrote:
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Taniya Das <tdas@xxxxxxxxxxxxxx>
Cc: Andy Gross <agross@xxxxxxxxxx>
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>


Acked-by: Taniya Das <tdas@xxxxxxxxxxxxxx>

---

Please ack so I can take this through clk tree

drivers/clk/qcom/clk-rpmh.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/qcom/clk-rpmh.c b/drivers/clk/qcom/clk-rpmh.c
index c3fd632af119..7a8a84dcb70d 100644
--- a/drivers/clk/qcom/clk-rpmh.c
+++ b/drivers/clk/qcom/clk-rpmh.c
@@ -396,6 +396,7 @@ static int clk_rpmh_probe(struct platform_device *pdev)
hw_clks = desc->clks;
for (i = 0; i < desc->num_clks; i++) {
+ const char *name = hw_clks[i]->init->name;
u32 res_addr;
size_t aux_data_len;
const struct bcm_db *data;
@@ -426,8 +427,7 @@ static int clk_rpmh_probe(struct platform_device *pdev)
ret = devm_clk_hw_register(&pdev->dev, hw_clks[i]);
if (ret) {
- dev_err(&pdev->dev, "failed to register %s\n",
- hw_clks[i]->init->name);
+ dev_err(&pdev->dev, "failed to register %s\n", name);
return ret;
}
}


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