Merge tag 'v5.5-rc5' into patchwork

Linux 5.5-rc5

* tag 'v5.5-rc5': (1006 commits)
  Linux 5.5-rc5
  Documentation: riscv: add patch acceptance guidelines
  riscv: prefix IRQ_ macro names with an RV_ namespace
  clocksource: riscv: add notrace to riscv_sched_clock
  apparmor: fix aa_xattrs_match() may sleep while holding a RCU lock
  hexagon: define ioremap_uc
  ocfs2: fix the crash due to call ocfs2_get_dlm_debug once less
  ocfs2: call journal flush to mark journal as empty after journal recovery when mount
  mm/hugetlb: defer freeing of huge pages if in non-task context
  mm/gup: fix memory leak in __gup_benchmark_ioctl
  mm/oom: fix pgtables units mismatch in Killed process message
  fs/posix_acl.c: fix kernel-doc warnings
  hexagon: work around compiler crash
  hexagon: parenthesize registers in asm predicates
  fs/namespace.c: make to_mnt_ns() static
  fs/nsfs.c: include headers for missing declarations
  fs/direct-io.c: include fs/internal.h for missing prototype
  mm: move_pages: return valid node id in status if the page is already on the target node
  memcg: account security cred as well to kmemcg
  kcov: fix struct layout for kcov_remote_arg
  ...

1 files changed, 12 insertions, 4 deletions

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 679ad3d2ed23..03d79fee2987 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1198,6 +1198,10 @@ static int machine_constraints_voltage(struct regulator_dev *rdev,
 			return -EINVAL;
 		}
 
+		/* no need to loop voltages if range is continuous */
+		if (rdev->desc->continuous_voltage_range)
+			return 0;
+
 		/* initial: [cmin..cmax] valid, [min_uV..max_uV] not */
 		for (i = 0; i < count; i++) {
 			int	value;
@@ -1938,8 +1942,8 @@ struct regulator *_regulator_get(struct device *dev, const char *id,
 	regulator = create_regulator(rdev, dev, id);
 	if (regulator == NULL) {
 		regulator = ERR_PTR(-ENOMEM);
-		put_device(&rdev->dev);
 		module_put(rdev->owner);
+		put_device(&rdev->dev);
 		return regulator;
 	}
 
@@ -2063,13 +2067,13 @@ static void _regulator_put(struct regulator *regulator)
 
 	rdev->open_count--;
 	rdev->exclusive = 0;
-	put_device(&rdev->dev);
 	regulator_unlock(rdev);
 
 	kfree_const(regulator->supply_name);
 	kfree(regulator);
 
 	module_put(rdev->owner);
+	put_device(&rdev->dev);
 }
 
 /**
@@ -5002,6 +5006,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
 	struct regulator_dev *rdev;
 	bool dangling_cfg_gpiod = false;
 	bool dangling_of_gpiod = false;
+	bool reg_device_fail = false;
 	struct device *dev;
 	int ret, i;
 
@@ -5187,7 +5192,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
 	dev_set_drvdata(&rdev->dev, rdev);
 	ret = device_register(&rdev->dev);
 	if (ret != 0) {
-		put_device(&rdev->dev);
+		reg_device_fail = true;
 		goto unset_supplies;
 	}
 
@@ -5218,7 +5223,10 @@ wash:
 clean:
 	if (dangling_of_gpiod)
 		gpiod_put(config->ena_gpiod);
-	kfree(rdev);
+	if (reg_device_fail)
+		put_device(&rdev->dev);
+	else
+		kfree(rdev);
 	kfree(config);
 rinse:
 	if (dangling_cfg_gpiod)