From: José Expósito Date: Thu, 10 Nov 2022 17:49:18 +0000 (+0100) Subject: HID: uclogic: Fix frame templates for big endian architectures X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a6f4f1662711bd03308371d9649783a5be596898;p=linux.git HID: uclogic: Fix frame templates for big endian architectures When parsing a frame template with a placeholder indicating the number of buttons present on the frame its value was incorrectly set on big endian architectures due to double little endian conversion. In order to reproduce the issue and verify the fix, run the HID KUnit tests on the PowerPC architecture: $ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/hid \ --arch=powerpc --cross_compile=powerpc64-linux-gnu- Fixes: 867c89254425 ("HID: uclogic: Allow to generate frame templates") Signed-off-by: José Expósito Signed-off-by: Jiri Kosina --- diff --git a/drivers/hid/hid-uclogic-rdesc.c b/drivers/hid/hid-uclogic-rdesc.c index 4bd54c4fb5b0b..6b73eb0df6bd7 100644 --- a/drivers/hid/hid-uclogic-rdesc.c +++ b/drivers/hid/hid-uclogic-rdesc.c @@ -1193,7 +1193,7 @@ __u8 *uclogic_rdesc_template_apply(const __u8 *template_ptr, p[sizeof(btn_head)] < param_num) { v = param_list[p[sizeof(btn_head)]]; put_unaligned((__u8)0x2A, p); /* Usage Maximum */ - put_unaligned_le16((__force u16)cpu_to_le16(v), p + 1); + put_unaligned((__force u16)cpu_to_le16(v), (s16 *)(p + 1)); p += sizeof(btn_head) + 1; } else { p++;