target/linux/sunxi/patches-3.13/126-regulator-dont-print-error-when-no-regulator-found.patch

   1 From 820a121fdef79cc1293e6fee2fbe8156d9e8a75a Mon Sep 17 00:00:00 2001
   2 From: Hans de Goede <hdegoede@redhat.com>
   3 Date: Wed, 11 Dec 2013 15:07:52 +0100
   4 Subject: [PATCH] regulator_get_optional: don't print an error when no
   5  regulator is found
   6
   7 Only print an error when _regulator_get() is expected to return a valid
   8 regulator, that is when _regulator_get() is called from regulator_get() and
   9 we're not using the dummy because we don't have full-constraints, or when
  10 _regulator_get() is called from regulator_get_exclusive() in which case
  11 returning a dummy is not allowed.
  12
  13 Signed-off-by: Hans de Goede <hdegoede@redhat.com>
  14 ---
  15  drivers/regulator/core.c | 3 ++-
  16  1 file changed, 2 insertions(+), 1 deletion(-)
  17
  18 diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
  19 index d85f313..9888f26 100644
  20 --- a/drivers/regulator/core.c
  21 +++ b/drivers/regulator/core.c
  22 @@ -1351,7 +1351,8 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
  23
  24                 rdev = dummy_regulator_rdev;
  25                 goto found;
  26 -       } else {
  27 +       /* Don't log an error when called from regulator_get_optional() */
  28 +       } else if (!have_full_constraints() || exclusive) {
  29                 dev_err(dev, "dummy supplies not allowed\n");
  30         }
  31
  32 --
  33 1.8.5.1
  34