FAILED: patch "[PATCH] phy: qcom-qmp-combo: fix init-count imbalance" failed to apply to 5.15-stable tree

FAILED: patch "[PATCH] phy: qcom-qmp-combo: fix init-count imbalance" failed to apply to 5.15-stable tree

[gregkh]

The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 9bf03a0cbd80a256bc1e1c4bcc80bc2b06b8b2b9
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023060509-immerse-panoramic-d721@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..

Possible dependencies:

9bf03a0cbd80 ("phy: qcom-qmp-combo: fix init-count imbalance")
94a407cc17a4 ("phy: qcom-qmp: create copies of QMP PHY driver")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 9bf03a0cbd80a256bc1e1c4bcc80bc2b06b8b2b9 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro@kernel.org>
Date: Tue, 2 May 2023 12:38:09 +0200
Subject: [PATCH] phy: qcom-qmp-combo: fix init-count imbalance

The init counter is not decremented on initialisation errors, which
prevents retrying initialisation and can lead to the runtime suspend
callback attempting to disable resources that have never been enabled.

Add the missing decrement on initialisation errors so that the counter
reflects the state of the device.

Fixes: e78f3d15e115 ("phy: qcom-qmp: new qmp phy driver for qcom-chipsets")
Cc: stable@vger.kernel.org	# 4.12
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230502103810.12061-2-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
index 6850e04c329b..87b17e5877ab 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -2472,7 +2472,7 @@ static int qmp_combo_com_init(struct qmp_combo *qmp)
 	ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs);
 	if (ret) {
 		dev_err(qmp->dev, "failed to enable regulators, err=%d\n", ret);
-		goto err_unlock;
+		goto err_decrement_count;
 	}
 
 	ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets);
@@ -2522,7 +2522,8 @@ static int qmp_combo_com_init(struct qmp_combo *qmp)
 	reset_control_bulk_assert(cfg->num_resets, qmp->resets);
 err_disable_regulators:
 	regulator_bulk_disable(cfg->num_vregs, qmp->vregs);
-err_unlock:
+err_decrement_count:
+	qmp->init_count--;
 	mutex_unlock(&qmp->phy_mutex);
 
 	return ret;