From: Vince Hsu <vince.h@xxxxxxxxxx>
The commit e770940218028c6a5927fda45f2ca9db5d9b35e0 ("clk: tegra: dfll:
Properly protect OPP list") added the rcu_read_{lock,unlock} but missed
one in the error path. So add the missing one.
Signed-off-by: Vince Hsu <vince.h@xxxxxxxxxx>
---
Hi,
I noticed the missed unlock because we had a similar fix as the commit
e77094021 in ChromeOS[1].
[1] https://chromium-review.googlesource.com/#/c/223661/
drivers/clk/tegra/clk-dfll.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/tegra/clk-dfll.c b/drivers/clk/tegra/clk-dfll.c
index 4adff56dd0ef..c4e3a52e225b 100644
--- a/drivers/clk/tegra/clk-dfll.c
+++ b/drivers/clk/tegra/clk-dfll.c
@@ -685,8 +685,10 @@ static int find_lut_index_for_rate(struct tegra_dfll *td, unsigned long rate)
rcu_read_lock();
opp = dev_pm_opp_find_freq_ceil(td->soc->dev, &rate);
- if (IS_ERR(opp))
+ if (IS_ERR(opp)) {
+ rcu_read_unlock();
return PTR_ERR(opp);
+ }
uv = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
--
2.1.4
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