target/linux/sunxi/patches-4.4/142-reset-use-ENOTSUPP-instead-of-ENOSYS.patch

   1 From 5a819175b911ce33f3337e1e069d4bcea1ec4788 Mon Sep 17 00:00:00 2001
   2 From: Philipp Zabel <p.zabel@pengutronix.de>
   3 Date: Thu, 29 Oct 2015 09:55:00 +0100
   4 Subject: [PATCH] reset: use ENOTSUPP instead of ENOSYS
   5
   6 ENOSYS is reserved to report invalid syscalls to userspace.
   7 Consistently return ENOTSUPP to indicate that the driver doesn't support
   8 the functionality or the reset framework is not enabled at all.
   9
  10 Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
  11 ---
  12  drivers/reset/core.c  | 8 ++++----
  13  include/linux/reset.h | 8 ++++----
  14  2 files changed, 8 insertions(+), 8 deletions(-)
  15
  16 diff --git a/drivers/reset/core.c b/drivers/reset/core.c
  17 index 77cfc49..9ab9290 100644
  18 --- a/drivers/reset/core.c
  19 +++ b/drivers/reset/core.c
  20 @@ -95,7 +95,7 @@ int reset_control_reset(struct reset_control *rstc)
  21         if (rstc->rcdev->ops->reset)
  22                 return rstc->rcdev->ops->reset(rstc->rcdev, rstc->id);
  23
  24 -       return -ENOSYS;
  25 +       return -ENOTSUPP;
  26  }
  27  EXPORT_SYMBOL_GPL(reset_control_reset);
  28
  29 @@ -108,7 +108,7 @@ int reset_control_assert(struct reset_control *rstc)
  30         if (rstc->rcdev->ops->assert)
  31                 return rstc->rcdev->ops->assert(rstc->rcdev, rstc->id);
  32
  33 -       return -ENOSYS;
  34 +       return -ENOTSUPP;
  35  }
  36  EXPORT_SYMBOL_GPL(reset_control_assert);
  37
  38 @@ -121,7 +121,7 @@ int reset_control_deassert(struct reset_control *rstc)
  39         if (rstc->rcdev->ops->deassert)
  40                 return rstc->rcdev->ops->deassert(rstc->rcdev, rstc->id);
  41
  42 -       return -ENOSYS;
  43 +       return -ENOTSUPP;
  44  }
  45  EXPORT_SYMBOL_GPL(reset_control_deassert);
  46
  47 @@ -136,7 +136,7 @@ int reset_control_status(struct reset_control *rstc)
  48         if (rstc->rcdev->ops->status)
  49                 return rstc->rcdev->ops->status(rstc->rcdev, rstc->id);
  50
  51 -       return -ENOSYS;
  52 +       return -ENOTSUPP;
  53  }
  54  EXPORT_SYMBOL_GPL(reset_control_status);
  55
  56 diff --git a/include/linux/reset.h b/include/linux/reset.h
  57 index 6db74ad..c4c097d 100644
  58 --- a/include/linux/reset.h
  59 +++ b/include/linux/reset.h
  60 @@ -74,7 +74,7 @@ static inline void reset_control_put(struct reset_control *rstc)
  61
  62  static inline int device_reset_optional(struct device *dev)
  63  {
  64 -       return -ENOSYS;
  65 +       return -ENOTSUPP;
  66  }
  67
  68  static inline struct reset_control *__must_check reset_control_get(
  69 @@ -94,19 +94,19 @@ static inline struct reset_control *__must_check devm_reset_control_get(
  70  static inline struct reset_control *reset_control_get_optional(
  71                                         struct device *dev, const char *id)
  72  {
  73 -       return ERR_PTR(-ENOSYS);
  74 +       return ERR_PTR(-ENOTSUPP);
  75  }
  76
  77  static inline struct reset_control *devm_reset_control_get_optional(
  78                                         struct device *dev, const char *id)
  79  {
  80 -       return ERR_PTR(-ENOSYS);
  81 +       return ERR_PTR(-ENOTSUPP);
  82  }
  83
  84  static inline struct reset_control *of_reset_control_get(
  85                                 struct device_node *node, const char *id)
  86  {
  87 -       return ERR_PTR(-ENOSYS);
  88 +       return ERR_PTR(-ENOTSUPP);
  89  }
  90
  91  static inline struct reset_control *of_reset_control_get_by_index(