X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Ffirewire%2Fcore-cdev.c;h=50332b84f49af354d90cf42c66f6e3cf4050bc56;hb=a10c0ce76098857b899505d05de9f2e13ddf7a7a;hp=9d1a1a1a83c953ce75cfe955efc747ef67558be2;hpb=262444eecce40950af19ea4d75a3dc03b3c07283;p=pandora-kernel.git

diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 9d1a1a1a83c9..50332b84f49a 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -756,9 +756,12 @@ static int ioctl_send_response(struct client *client, union ioctl_arg *arg)
 	if (is_fcp_request(r->request))
 		goto out;
 
-	if (a->length < r->length)
-		r->length = a->length;
-	if (copy_from_user(r->data, u64_to_uptr(a->data), r->length)) {
+	if (a->length != fw_get_response_length(r->request)) {
+		ret = -EINVAL;
+		kfree(r->request);
+		goto out;
+	}
+	if (copy_from_user(r->data, u64_to_uptr(a->data), a->length)) {
 		ret = -EFAULT;
 		kfree(r->request);
 		goto out;