This reverts commit 94a9992f7dbdfb28976b565af220e0c4a117144a.
The commit allows for more than 32 bits in hid_field_extract(), but the return value is a 32 bits int. So basically what this commit is doing is just silencing those legitimate errors.
Revert to a previous situation in the hope that a proper fix will be impletemented.
Fixes: 94a9992f7dbd ("HID: Increase maximum report size allowed by hid_field_extract()") Cc: stable@vger.kernel.org # v5.1 Signed-off-by: Benjamin Tissoires benjamin.tissoires@redhat.com --- drivers/hid/hid-core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 08d310723e96..205d6b82a706 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1311,10 +1311,10 @@ static u32 __extract(u8 *report, unsigned offset, int n) u32 hid_field_extract(const struct hid_device *hid, u8 *report, unsigned offset, unsigned n) { - if (n > 256) { - hid_warn(hid, "hid_field_extract() called with n (%d) > 256! (%s)\n", + if (n > 32) { + hid_warn(hid, "hid_field_extract() called with n (%d) > 32! (%s)\n", n, current->comm); - n = 256; + n = 32; }
return __extract(report, offset, n);