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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240823-cleanup-h-guard-clk-qcom-v1-1-68bb9601c9dd@linaro.org> References: <20240823-cleanup-h-guard-clk-qcom-v1-0-68bb9601c9dd@linaro.org> In-Reply-To: <20240823-cleanup-h-guard-clk-qcom-v1-0-68bb9601c9dd@linaro.org> To: Bjorn Andersson , Michael Turquette , Stephen Boyd Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=2437; i=krzysztof.kozlowski@linaro.org; h=from:subject:message-id; bh=JR9cw74DQSM2eU2zWwaNZZ0xGyZqYuXXOD6ozbehUUQ=; b=owEBbQKS/ZANAwAKAcE3ZuaGi4PXAcsmYgBmyK0IQtEkv5hsTH16vg7GMkM80IXzMNmQHSClE WDLx9TYIlyJAjMEAAEKAB0WIQTd0mIoPREbIztuuKjBN2bmhouD1wUCZsitCAAKCRDBN2bmhouD 17SRD/9O9R3z7jT0K4xXGRf4Jsz0hfvMvbt5+GVp3EGiPy5d6axfBuNX1/OWAgdCHeEvhJKR6MJ ZDoSdUNxevZLbafQmwlTGFTwe0kuT2B+dUM6xB22VUNHTRnWM0iCF6fucU5dDAQjC1yAB/K3oRE lNc/C2u6tFZuMvBv1Fu06h7EtvPDjEfIVbZkkjzPk2HuLlTlXm6z5Cvl/YqYVwR3Ve6GsepflLA LXR5DWR1HOdlhLrXNFB8ErJHxoXhutLCzKoBIu2U+ANBpHyrQ3gvw5D4x9OsxbcFPyydOpKxAuh QnR545gj9b2smdNQM8opOyTZAoQEm57Y82dzLjz0ryYFp2R2xWBlnC7OhzxKaRojS/X0NPvHkNe FeNYdG8I1e+Ejd0ZCP+KSwKSQrlrTYVJ5WB/aWdVz1xP5rt9z65U7MZGc3qMQ5mCRLdcfpFyQoY 23HVbRa+vKX6Hv2oV4d2Gpc5ghplUAKXk1ljmld6u0bplTxVHDbRdDy8NkOXhEtWOqUFQpaFd2G N91KuywF7T3KUJ+VIbKydsoBePBxZmU4RowAN/hyGvBxcVTriseJhul1tJW8X+Z81vhZD+ZaPde 9a/r8CyviB3d+yGZWmhpD7ffzepSuXk0n5Yl+pKTJeeYvPGgVyi6ULTpD9gFZUVApj2FZcGL+pm nryYWEy/6Wqtz1A== X-Developer-Key: i=krzysztof.kozlowski@linaro.org; a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B Simplify error handling (less gotos) over locks with guard(). Signed-off-by: Krzysztof Kozlowski --- drivers/clk/qcom/clk-rpm.c | 27 +++++++++++---------------- 1 file changed, 11 insertions(+), 16 deletions(-) diff --git a/drivers/clk/qcom/clk-rpm.c b/drivers/clk/qcom/clk-rpm.c index 9da034f8f2ff..ccc112c21667 100644 --- a/drivers/clk/qcom/clk-rpm.c +++ b/drivers/clk/qcom/clk-rpm.c @@ -4,6 +4,7 @@ * Copyright (c) 2014, The Linux Foundation. All rights reserved. */ =20 +#include #include #include #include @@ -224,10 +225,10 @@ static void clk_rpm_unprepare(struct clk_hw *hw) unsigned long active_rate, sleep_rate; int ret; =20 - mutex_lock(&rpm_clk_lock); + guard(mutex)(&rpm_clk_lock); =20 if (!r->rate) - goto out; + return; =20 /* Take peer clock's rate into account only if it's enabled. */ if (peer->enabled) @@ -237,17 +238,14 @@ static void clk_rpm_unprepare(struct clk_hw *hw) active_rate =3D r->branch ? !!peer_rate : peer_rate; ret =3D clk_rpm_set_rate_active(r, active_rate); if (ret) - goto out; + return; =20 sleep_rate =3D r->branch ? !!peer_sleep_rate : peer_sleep_rate; ret =3D clk_rpm_set_rate_sleep(r, sleep_rate); if (ret) - goto out; + return; =20 r->enabled =3D false; - -out: - mutex_unlock(&rpm_clk_lock); } =20 static int clk_rpm_xo_prepare(struct clk_hw *hw) @@ -324,12 +322,12 @@ static int clk_rpm_set_rate(struct clk_hw *hw, unsigned long active_rate, sleep_rate; unsigned long this_rate =3D 0, this_sleep_rate =3D 0; unsigned long peer_rate =3D 0, peer_sleep_rate =3D 0; - int ret =3D 0; + int ret; =20 - mutex_lock(&rpm_clk_lock); + guard(mutex)(&rpm_clk_lock); =20 if (!r->enabled) - goto out; + return 0; =20 to_active_sleep(r, rate, &this_rate, &this_sleep_rate); =20 @@ -341,19 +339,16 @@ static int clk_rpm_set_rate(struct clk_hw *hw, active_rate =3D max(this_rate, peer_rate); ret =3D clk_rpm_set_rate_active(r, active_rate); if (ret) - goto out; + return ret; =20 sleep_rate =3D max(this_sleep_rate, peer_sleep_rate); ret =3D clk_rpm_set_rate_sleep(r, sleep_rate); if (ret) - goto out; + return ret; =20 r->rate =3D rate; =20 -out: - mutex_unlock(&rpm_clk_lock); - - return ret; + return 0; } =20 static long clk_rpm_round_rate(struct clk_hw *hw, unsigned long rate, --=20 2.43.0