diff options
| author | Adam Kropelin <akropel1@rochester.rr.com> | 2005-05-29 02:30:08 -0500 |
|---|---|---|
| committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-05-29 02:30:08 -0500 |
| commit | bef3768d8fdee7e1f1488e7017937eb4bf5797a2 (patch) | |
| tree | e90fcb529b69af81b0b21a0f3f8c77ecd48ea58d | |
| parent | 18098a6c750d90e7bdf299fbd2144d05434a8d5a (diff) | |
Input: HID items of width 32 (bits) or greater are incorrectly extracted
due to a masking bug in hid-core.c:extract(). This patch fixes it
up by forcing the mask to be 64 bits wide.
Signed-off-by: Adam Kropelin <akropel1@rochester.rr.com>
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
| -rw-r--r-- | drivers/usb/input/hid-core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c index 08e701bc9f6..43215a98181 100644 --- a/drivers/usb/input/hid-core.c +++ b/drivers/usb/input/hid-core.c @@ -765,7 +765,7 @@ static __inline__ __u32 s32ton(__s32 value, unsigned n) static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n) { report += (offset >> 5) << 2; offset &= 31; - return (le64_to_cpu(get_unaligned((__le64*)report)) >> offset) & ((1 << n) - 1); + return (le64_to_cpu(get_unaligned((__le64*)report)) >> offset) & ((1ULL << n) - 1); } static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value) |