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clk: tegra: fix error return case for recalc_rate

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[ Upstream commit a47b44fbb13f5e7a981b4515dcddc93a321ae89c ]

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."

Fixes: ca6f2796ee ("clk: tegra: Add BPMP clock driver")
Signed-off-by: Timo Alho <talho@nvidia.com>
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Link: https://lore.kernel.org/r/20230912112951.2330497-1-cyndis@kapsi.fi
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Timo Alho 2023-09-12 14:29:50 +03:00 committed by Greg Kroah-Hartman
parent 6938a6cbe6
commit 3468fa39d8
1 changed files with 1 additions and 1 deletions
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2
drivers/clk/tegra/clk-bpmp.c
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@ -159,7 +159,7 @@ static unsigned long tegra_bpmp_clk_recalc_rate(struct clk_hw *hw,
err = tegra_bpmp_clk_transfer(clk->bpmp, &msg); err = tegra_bpmp_clk_transfer(clk->bpmp, &msg);
if (err < 0) if (err < 0)
return err; return 0;
return response.rate; return response.rate;
} }