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Date: Tue, 8 Mar 2016 16:29:07 -0800 From: Kamal Mostafa <kamal@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Axel Lin <axel.lin@...ics.com>, Kishon Vijay Abraham I <kishon@...com>, Kamal Mostafa <kamal@...onical.com> Subject: [PATCH 3.19.y-ckt 089/196] phy: core: Fixup return value of phy_exit when !pm_runtime_enabled 3.19.8-ckt16 -stable review patch. If anyone has any objections, please let me know. ---8<------------------------------------------------------------ From: Axel Lin <axel.lin@...ics.com> commit 736b67a32062240592aad49033859f9712dd18ca upstream. When phy_pm_runtime_get_sync() returns -ENOTSUPP, phy_exit() also returns -ENOTSUPP if !phy->ops->exit. Fix it. Also move the code to override ret close to the code we got ret. I think it is less error prone this way. Signed-off-by: Axel Lin <axel.lin@...ics.com> Acked-by: Roger Quadros <rogerq@...com> Signed-off-by: Kishon Vijay Abraham I <kishon@...com> Signed-off-by: Kamal Mostafa <kamal@...onical.com> --- drivers/phy/phy-core.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index 04fc84f..3791838 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -225,6 +225,7 @@ int phy_init(struct phy *phy) ret = phy_pm_runtime_get_sync(phy); if (ret < 0 && ret != -ENOTSUPP) return ret; + ret = 0; /* Override possible ret == -ENOTSUPP */ mutex_lock(&phy->mutex); if (phy->init_count == 0 && phy->ops->init) { @@ -233,8 +234,6 @@ int phy_init(struct phy *phy) dev_err(&phy->dev, "phy init failed --> %d\n", ret); goto out; } - } else { - ret = 0; /* Override possible ret == -ENOTSUPP */ } ++phy->init_count; @@ -255,6 +254,7 @@ int phy_exit(struct phy *phy) ret = phy_pm_runtime_get_sync(phy); if (ret < 0 && ret != -ENOTSUPP) return ret; + ret = 0; /* Override possible ret == -ENOTSUPP */ mutex_lock(&phy->mutex); if (phy->init_count == 1 && phy->ops->exit) { @@ -289,6 +289,7 @@ int phy_power_on(struct phy *phy) ret = phy_pm_runtime_get_sync(phy); if (ret < 0 && ret != -ENOTSUPP) return ret; + ret = 0; /* Override possible ret == -ENOTSUPP */ mutex_lock(&phy->mutex); if (phy->power_count == 0 && phy->ops->power_on) { @@ -297,8 +298,6 @@ int phy_power_on(struct phy *phy) dev_err(&phy->dev, "phy poweron failed --> %d\n", ret); goto out; } - } else { - ret = 0; /* Override possible ret == -ENOTSUPP */ } ++phy->power_count; mutex_unlock(&phy->mutex); -- 2.7.0
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