| Message ID | 20230502103810.12061-3-johan+linaro@kernel.org (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | phy: qcom-qmp: fix init-count imbalance | expand |
On Tue, 2 May 2023 at 13:39, Johan Hovold <johan+linaro@kernel.org> wrote: > > 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@vger.kernel.org # 4.12 > Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > --- > drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c > index 09824be088c9..0c603bc06e09 100644 > --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c > +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c > @@ -379,7 +379,7 @@ static int qmp_pcie_msm8996_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; > } > > ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets); > @@ -409,7 +409,8 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) > 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; > -- > 2.39.2 >
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c index 09824be088c9..0c603bc06e09 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c @@ -379,7 +379,7 @@ static int qmp_pcie_msm8996_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; } ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets); @@ -409,7 +409,8 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) 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;
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@vger.kernel.org # 4.12 Signed-off-by: Johan Hovold <johan+linaro@kernel.org> --- drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)