gro: Enter slow-path if there is no tailroom

[pandora-kernel.git] / drivers / hid / hid-zpff.c

diff --git a/drivers/hid/hid-zpff.c b/drivers/hid/hid-zpff.c
index f31fab0..f348f7f 100644 (file)
--- a/drivers/hid/hid-zpff.c
+++ b/drivers/hid/hid-zpff.c
@@ -25,6 +25,7 @@
 #include <linux/input.h>
 #include <linux/slab.h>
 #include <linux/usb.h>
+#include <linux/module.h>
 
 #include "hid-ids.h"
 
@@ -69,21 +70,13 @@ static int zpff_init(struct hid_device *hid)
        struct hid_report *report;
        struct hid_input *hidinput = list_entry(hid->inputs.next,
                                                struct hid_input, list);
-       struct list_head *report_list =
-                       &hid->report_enum[HID_OUTPUT_REPORT].report_list;
        struct input_dev *dev = hidinput->input;
-       int error;
+       int i, error;
 
-       if (list_empty(report_list)) {
-               hid_err(hid, "no output report found\n");
-               return -ENODEV;
-       }
-
-       report = list_entry(report_list->next, struct hid_report, list);
-
-       if (report->maxfield < 4) {
-               hid_err(hid, "not enough fields in report\n");
-               return -ENODEV;
+       for (i = 0; i < 4; i++) {
+               report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, i, 1);
+               if (!report)
+                       return -ENODEV;
        }
 
        zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL);