diff options
| author | Simon Glass <sjg@chromium.org> | 2015-07-06 12:54:38 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-07-21 17:39:33 -0600 |
| commit | 9f4629be8a9a06211e392ff0eccbff76603488b2 (patch) | |
| tree | c2534dcdd45d65447028f8402685841be9886392 /drivers/core | |
| parent | 85aeda4a62775326d616c7bc5876b4bd00cb1a3e (diff) | |
dm: core: Add device checking to syscon_get_regmap()
This function can only handle a syscon device. It is possible that someone
will make a mistake, so add a check for this.
Also we should return -ENODEV when a device cannot be found, so update the
syscon_get_regmap_by_driver_data() to follow this convention.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/core')
| -rw-r--r-- | drivers/core/syscon-uclass.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/core/syscon-uclass.c b/drivers/core/syscon-uclass.c index 4d66bb5d50..686c32056e 100644 --- a/drivers/core/syscon-uclass.c +++ b/drivers/core/syscon-uclass.c @@ -17,8 +17,11 @@ struct regmap *syscon_get_regmap(struct udevice *dev) { - struct syscon_uc_info *priv = dev_get_uclass_priv(dev); + struct syscon_uc_info *priv; + if (device_get_uclass_id(dev) != UCLASS_SYSCON) + return ERR_PTR(-ENOEXEC); + priv = dev_get_uclass_priv(dev); return priv->regmap; } @@ -52,7 +55,7 @@ struct regmap *syscon_get_regmap_by_driver_data(ulong driver_data) } } - return ERR_PTR(-ENOENT); + return ERR_PTR(-ENODEV); } void *syscon_get_first_range(ulong driver_data) |