4.19-stable review patch. If anyone has any objections, please let me know.
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From: Timo Alho talho@nvidia.com
[ 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: ca6f2796eef7 ("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 --- drivers/clk/tegra/clk-bpmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/tegra/clk-bpmp.c b/drivers/clk/tegra/clk-bpmp.c index 01dada561c10c..3bdd3334b0f94 100644 --- a/drivers/clk/tegra/clk-bpmp.c +++ b/drivers/clk/tegra/clk-bpmp.c @@ -162,7 +162,7 @@ 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; }