clk: tegra: fix error return case for recalc_rate

tegra-bpmp clocks driver makes implicit conversion of signed error
code to unsigned value in recalc_rate operation. The behavior for
recalc_rate, according to it's specification, should be that "If the
driver cannot figure out a rate for this clock, it must return 0."

Bug 3640397
Bug 4090576

Signed-off-by: Timo Alho <talho@nvidia.com>
Change-Id: I96cfbe466351fde035e0de6aeae1b9e6d929cec4
Reviewed-on: https://git-master.nvidia.com/r/c/linux-stable/+/2975580
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2977080
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Timo Alho
2023-09-07 11:02:36 +03:00
committed by mobile promotions
parent 97835cded8
commit 320dee5c7d

View File

@@ -159,7 +159,7 @@ static unsigned long tegra_bpmp_clk_recalc_rate(struct clk_hw *hw,
err = tegra_bpmp_clk_transfer(clk->bpmp, &msg);
if (err < 0)
return err;
return 0;
return response.rate;
}