diff options
Diffstat (limited to 'drivers/base/faux.c')
| -rw-r--r-- | drivers/base/faux.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/base/faux.c b/drivers/base/faux.c index 531e9d789ee0..407c1d1aad50 100644 --- a/drivers/base/faux.c +++ b/drivers/base/faux.c @@ -102,7 +102,9 @@ static void faux_device_release(struct device *dev) * * Note, when this function is called, the functions specified in struct * faux_ops can be called before the function returns, so be prepared for - * everything to be properly initialized before that point in time. + * everything to be properly initialized before that point in time. If the + * probe callback (if one is present) does NOT succeed, the creation of the + * device will fail and NULL will be returned. * * Return: * * NULL if an error happened with creating the device @@ -147,6 +149,17 @@ struct faux_device *faux_device_create_with_groups(const char *name, return NULL; } + /* + * Verify that we did bind the driver to the device (i.e. probe worked), + * if not, let's fail the creation as trying to guess if probe was + * successful is almost impossible to determine by the caller. + */ + if (!dev->driver) { + dev_err(dev, "probe did not succeed, tearing down the device\n"); + faux_device_destroy(faux_dev); + faux_dev = NULL; + } + return faux_dev; } EXPORT_SYMBOL_GPL(faux_device_create_with_groups); |