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 --- a/drivers/reset/core.c
  17 +++ b/drivers/reset/core.c
  18 @@ -95,7 +95,7 @@ int reset_control_reset(struct reset_con
  19         if (rstc->rcdev->ops->reset)
  20                 return rstc->rcdev->ops->reset(rstc->rcdev, rstc->id);
  21
  22 -       return -ENOSYS;
  23 +       return -ENOTSUPP;
  24  }
  25  EXPORT_SYMBOL_GPL(reset_control_reset);
  26
  27 @@ -108,7 +108,7 @@ int reset_control_assert(struct reset_co
  28         if (rstc->rcdev->ops->assert)
  29                 return rstc->rcdev->ops->assert(rstc->rcdev, rstc->id);
  30
  31 -       return -ENOSYS;
  32 +       return -ENOTSUPP;
  33  }
  34  EXPORT_SYMBOL_GPL(reset_control_assert);
  35
  36 @@ -121,7 +121,7 @@ int reset_control_deassert(struct reset_
  37         if (rstc->rcdev->ops->deassert)
  38                 return rstc->rcdev->ops->deassert(rstc->rcdev, rstc->id);
  39
  40 -       return -ENOSYS;
  41 +       return -ENOTSUPP;
  42  }
  43  EXPORT_SYMBOL_GPL(reset_control_deassert);
  44
  45 @@ -136,7 +136,7 @@ int reset_control_status(struct reset_co
  46         if (rstc->rcdev->ops->status)
  47                 return rstc->rcdev->ops->status(rstc->rcdev, rstc->id);
  48
  49 -       return -ENOSYS;
  50 +       return -ENOTSUPP;
  51  }
  52  EXPORT_SYMBOL_GPL(reset_control_status);
  53
  54 --- a/include/linux/reset.h
  55 +++ b/include/linux/reset.h
  56 @@ -74,7 +74,7 @@ static inline void reset_control_put(str
  57
  58  static inline int device_reset_optional(struct device *dev)
  59  {
  60 -       return -ENOSYS;
  61 +       return -ENOTSUPP;
  62  }
  63
  64  static inline struct reset_control *__must_check reset_control_get(
  65 @@ -94,19 +94,19 @@ static inline struct reset_control *__mu
  66  static inline struct reset_control *reset_control_get_optional(
  67                                         struct device *dev, const char *id)
  68  {
  69 -       return ERR_PTR(-ENOSYS);
  70 +       return ERR_PTR(-ENOTSUPP);
  71  }
  72
  73  static inline struct reset_control *devm_reset_control_get_optional(
  74                                         struct device *dev, const char *id)
  75  {
  76 -       return ERR_PTR(-ENOSYS);
  77 +       return ERR_PTR(-ENOTSUPP);
  78  }
  79
  80  static inline struct reset_control *of_reset_control_get(
  81                                 struct device_node *node, const char *id)
  82  {
  83 -       return ERR_PTR(-ENOSYS);
  84 +       return ERR_PTR(-ENOTSUPP);
  85  }
  86
  87  static inline struct reset_control *of_reset_control_get_by_index(