This is a note to let you know that I've just added the patch titled
phy: qcom-qmp-pcie-msm8996: fix init-count imbalance
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
phy-qcom-qmp-pcie-msm8996-fix-init-count-imbalance.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 88bff3133ce610f1604cc32c1881d36b1e74363a
Author: Johan Hovold <johan+linaro@xxxxxxxxxx>
Date: Tue May 2 12:38:10 2023 +0200
phy: qcom-qmp-pcie-msm8996: fix init-count imbalance
[ Upstream commit e42f110700ed7293700c26145e1ed07ea05ac3f6 ]
The init counter is not decremented on initialisation errors, which
prevents retrying initialisation.
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@xxxxxxxxxxxxxxx # 4.12
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230502103810.12061-3-johan+linaro@xxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c
index c7309e981bfb5..96282a118e635 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c
@@ -5085,7 +5085,7 @@ static int qcom_qmp_phy_com_init(struct qmp_phy *qphy)
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;
}
for (i = 0; i < cfg->num_resets; i++) {
@@ -5155,7 +5155,8 @@ static int qcom_qmp_phy_com_init(struct qmp_phy *qphy)
reset_control_assert(qmp->resets[i]);
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;
