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| author | Tom Rini <trini@konsulko.com> | 2015-09-03 14:57:09 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-09-03 14:57:09 -0400 |
| commit | c9feb427aba860ebc79f9851a1bb49cc456a2d48 (patch) | |
| tree | 6a80def1806386e2854d57f740264c6744d96e1d /drivers/core/uclass.c | |
| parent | da9d8580ff9ce17452ef931072e5799a9df8807f (diff) | |
| parent | f2acc55e3d28e96a6fcc060a7081eb4e2ad96350 (diff) | |
Merge git://git.denx.de/u-boot-rockchip
Diffstat (limited to 'drivers/core/uclass.c')
| -rw-r--r-- | drivers/core/uclass.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c index f63ff599a6..e800c28653 100644 --- a/drivers/core/uclass.c +++ b/drivers/core/uclass.c @@ -58,7 +58,12 @@ static int uclass_add(enum uclass_id id, struct uclass **ucp) if (!uc_drv) { debug("Cannot find uclass for id %d: please add the UCLASS_DRIVER() declaration for this UCLASS_... id\n", id); - return -ENOENT; + /* + * Use a strange error to make this case easier to find. When + * a uclass is not available it can prevent driver model from + * starting up and this failure is otherwise hard to debug. + */ + return -EPFNOSUPPORT; } uc = calloc(1, sizeof(*uc)); if (!uc) |