diff options
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/device.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/of/device.c b/drivers/of/device.c index c674a13c3055..8271793ef379 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -256,7 +256,7 @@ static ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len ssize_t csize; ssize_t tsize; - if ((!dev) || (!dev->of_node)) + if ((!dev) || (!dev->of_node) || dev->of_node_reused) return -ENODEV; /* Name & Type */ @@ -376,7 +376,7 @@ int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env) { int sl; - if ((!dev) || (!dev->of_node)) + if ((!dev) || (!dev->of_node) || dev->of_node_reused) return -ENODEV; /* Devicetree modalias is tricky, we add it in 2 steps */ @@ -385,6 +385,8 @@ int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env) sl = of_device_get_modalias(dev, &env->buf[env->buflen-1], sizeof(env->buf) - env->buflen); + if (sl < 0) + return sl; if (sl >= (sizeof(env->buf) - env->buflen)) return -ENOMEM; env->buflen += sl; |