X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fhid%2Fhid-core.c;h=62e21cc739381e314908bbd0d6e971a303a11c56;hb=019a67555857d33b34b105774acb3d2f59553424;hp=1cca32f46947e0675ea7b77ea28b043393ef3f75;hpb=8da7d1bae512aee155ef02f7ab1266358842e1fd;p=powerpc.git

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 1cca32f469..62e21cc739 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -4,7 +4,7 @@
  *  Copyright (c) 1999 Andreas Gal
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
- *  Copyright (c) 2006 Jiri Kosina
+ *  Copyright (c) 2006-2007 Jiri Kosina
  */
 
 /*
@@ -37,7 +37,7 @@
  */
 
 #define DRIVER_VERSION "v2.6"
-#define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik"
+#define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik, Jiri Kosina"
 #define DRIVER_DESC "HID core driver"
 #define DRIVER_LICENSE "GPL"
 
@@ -872,8 +872,13 @@ static void hid_output_field(struct hid_field *field, __u8 *data)
 	unsigned count = field->report_count;
 	unsigned offset = field->report_offset;
 	unsigned size = field->report_size;
+	unsigned bitsused = offset + count * size;
 	unsigned n;
 
+	/* make sure the unused bits in the last byte are zeros */
+	if (count > 0 && size > 0 && (bitsused % 8) != 0)
+		data[(bitsused-1)/8] &= (1 << (bitsused % 8)) - 1;
+
 	for (n = 0; n < count; n++) {
 		if (field->logical_minimum < 0)	/* signed values */
 			implement(data, offset + n * size, size, s32ton(field->value[n], size));