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-rw-r--r--drivers/acpi/scan.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 64620d668742..5b4d462117cf 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -319,16 +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;
}