diff options
| -rw-r--r-- | drivers/core/device-remove.c | 3 | ||||
| -rw-r--r-- | drivers/core/device.c | 2 | ||||
| -rw-r--r-- | include/dm/device.h | 3 |
3 files changed, 8 insertions, 0 deletions
diff --git a/drivers/core/device-remove.c b/drivers/core/device-remove.c index 6b87f86..45d6543 100644 --- a/drivers/core/device-remove.c +++ b/drivers/core/device-remove.c @@ -61,6 +61,9 @@ int device_unbind(struct udevice *dev) if (dev->flags & DM_FLAG_ACTIVATED) return -EINVAL; + if (!(dev->flags & DM_FLAG_BOUND)) + return -EINVAL; + drv = dev->driver; assert(drv); diff --git a/drivers/core/device.c b/drivers/core/device.c index d65717d..bf6f271 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -132,6 +132,8 @@ int device_bind(struct udevice *parent, const struct driver *drv, dm_dbg("Bound device %s to %s\n", dev->name, parent->name); *devp = dev; + dev->flags |= DM_FLAG_BOUND; + return 0; fail_child_post_bind: diff --git a/include/dm/device.h b/include/dm/device.h index 12fd02d..4cd7ba3 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -36,6 +36,9 @@ struct driver_info; /* Allocate driver private data on a DMA boundary */ #define DM_FLAG_ALLOC_PRIV_DMA (1 << 5) +/* Device is bound */ +#define DM_FLAG_BOUND (1 << 6) + /** * struct udevice - An instance of a driver * |