diff mbox series

[v9,1/4] clk: qcom: gdsc: Release pm subdomains in reverse add order

Message ID 20241230-b4-linux-next-24-11-18-clock-multiple-power-domains-v9-1-f15fb405efa5@linaro.org
State New
Headers show
Series clk: qcom: Add support for multiple power-domains for a clock controller. | expand

Commit Message

Bryan O'Donoghue Dec. 30, 2024, 1:30 p.m. UTC
gdsc_unregister() should release subdomains in the reverse order to the
order in which those subdomains were added.

Fixes: 1b771839de05 ("clk: qcom: gdsc: enable optional power domain support")
Cc: stable@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/clk/qcom/gdsc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Bryan O'Donoghue Jan. 6, 2025, 4:55 p.m. UTC | #1
On 06/01/2025 16:53, Bjorn Andersson wrote:
> This sounds very reasonable to me, but what's the actual reason?
> 
>> Fixes: 1b771839de05 ("clk: qcom: gdsc: enable optional power domain support")
>> Cc:stable@vger.kernel.org
> Without a reason it's hard to see why this needs to be backported.
> 
> Regards,
> Bjorn

The reason is it makes the next patch much cleaner and makes backporting 
the Fixes in the next patch cleaner too.

I could squash the two patches together as another option..
diff mbox series

Patch

diff --git a/drivers/clk/qcom/gdsc.c b/drivers/clk/qcom/gdsc.c
index fa5fe4c2a2ee7786c2e8858f3e41301f639e5d59..bc1b1e37bf4222017c172b77603f8dedba961ed5 100644
--- a/drivers/clk/qcom/gdsc.c
+++ b/drivers/clk/qcom/gdsc.c
@@ -571,7 +571,7 @@  void gdsc_unregister(struct gdsc_desc *desc)
 	size_t num = desc->num;
 
 	/* Remove subdomains */
-	for (i = 0; i < num; i++) {
+	for (i = num - 1; i >= 0; i--) {
 		if (!scs[i])
 			continue;
 		if (scs[i]->parent)