diff options
Diffstat (limited to 'drivers/acpi/scan.c')
| -rw-r--r-- | drivers/acpi/scan.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index be74347d135..5b4d462117c 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -35,8 +35,9 @@ struct acpi_device_bus_id{ * e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get: * char *modalias: "acpi:IBM0001:ACPI0001" */ -int create_modalias(struct acpi_device *acpi_dev, char *modalias, int size){ - +static int create_modalias(struct acpi_device *acpi_dev, char *modalias, + int size) +{ int len; if (!acpi_dev->flags.hardware_id) @@ -318,16 +319,18 @@ static int acpi_bus_match(struct device *dev, struct device_driver *drv) return !acpi_match_device_ids(acpi_dev, acpi_drv->ids); } -static int acpi_device_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env) { struct acpi_device *acpi_dev = to_acpi_device(dev); + int len; - strcpy(buffer, "MODALIAS="); - if (create_modalias(acpi_dev, buffer + 9, buffer_size - 9) > 0) { - envp[0] = buffer; - envp[1] = NULL; - } + if (add_uevent_var(env, "MODALIAS=")) + return -ENOMEM; + len = create_modalias(acpi_dev, &env->buf[env->buflen - 1], + sizeof(env->buf) - env->buflen); + if (len >= (sizeof(env->buf) - env->buflen)) + return -ENOMEM; + env->buflen += len; return 0; } |