diff options
Diffstat (limited to 'drivers/staging/fsl-mc/bus/mc-bus.c')
| -rw-r--r-- | drivers/staging/fsl-mc/bus/mc-bus.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c index 92e0702..2aaeb3a 100644 --- a/drivers/staging/fsl-mc/bus/mc-bus.c +++ b/drivers/staging/fsl-mc/bus/mc-bus.c @@ -39,7 +39,7 @@ static int fsl_mc_bus_match(struct device *dev, struct device_driver *drv) bool major_version_mismatch = false; bool minor_version_mismatch = false; - if (WARN_ON(!fsl_mc_bus_type.dev_root)) + if (WARN_ON(!fsl_mc_bus_exists())) goto out; if (!mc_drv->match_id_table) @@ -206,6 +206,15 @@ void fsl_mc_driver_unregister(struct fsl_mc_driver *mc_driver) } EXPORT_SYMBOL_GPL(fsl_mc_driver_unregister); +/** + * fsl_mc_bus_exists - check if a root dprc exists + */ +bool fsl_mc_bus_exists(void) +{ + return fsl_mc_bus_type.dev_root; +} +EXPORT_SYMBOL_GPL(fsl_mc_bus_exists); + static int get_dprc_icid(struct fsl_mc_io *mc_io, int container_id, u16 *icid) { @@ -407,7 +416,7 @@ int fsl_mc_device_add(struct dprc_obj_desc *obj_desc, mc_io2 = mc_io; - if (!fsl_mc_bus_type.dev_root) + if (!fsl_mc_bus_exists()) fsl_mc_bus_type.dev_root = &mc_dev->dev; } |