linux-kernel - [PATCH] regmap-irq: Correct error paths in regmap_irq_thread for pm

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Date:   Mon, 12 Aug 2019 10:24:09 +0100
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     <broonie@...nel.org>
CC:     <gregkh@...uxfoundation.org>, <rafael@...nel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] regmap-irq: Correct error paths in regmap_irq_thread for pm_runtime

Some error paths in regmap_irq_thread put the pm_runtime others do not,
there is no reason to leave the pm_runtime enabled in some cases so
update those paths to also put the pm_runtime.

Signed-off-by: Charles Keepax <ckeepax@...nsource.cirrus.com>
---
 drivers/base/regmap/regmap-irq.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index c9dc70ceca5f1..3d64c9331a82a 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -370,7 +370,6 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
 		if (ret < 0) {
 			dev_err(map->dev, "IRQ thread failed to resume: %d\n",
 				ret);
-			pm_runtime_put(map->dev);
 			goto exit;
 		}
 	}
@@ -425,8 +424,6 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
 					dev_err(map->dev,
 						"Failed to read IRQ status %d\n",
 						ret);
-					if (chip->runtime_pm)
-						pm_runtime_put(map->dev);
 					goto exit;
 				}
 			}
@@ -478,8 +475,6 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
 				dev_err(map->dev,
 					"Failed to read IRQ status: %d\n",
 					ret);
-				if (chip->runtime_pm)
-					pm_runtime_put(map->dev);
 				goto exit;
 			}
 		}
@@ -513,10 +508,10 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
 		}
 	}
 
+exit:
 	if (chip->runtime_pm)
 		pm_runtime_put(map->dev);
 
-exit:
 	if (chip->handle_post_irq)
 		chip->handle_post_irq(chip->irq_drv_data);
 
-- 
2.11.0