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| author |   Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2019-06-05 14:44:05 +0200 |
|---|---|---|
| committer | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2019-06-05 15:14:53 +0200 |
| commit | 15fc1b5c86128f91c8c6699c3b0d9615740b13f1 (patch) | |
| tree | 174f6e72c44865a3c03973e881649c636e87f098 /drivers/hid | |
| parent | HID: a4tech: fix horizontal scrolling (diff) | |
| download | linux-dev-15fc1b5c86128f91c8c6699c3b0d9615740b13f1.tar.xz linux-dev-15fc1b5c86128f91c8c6699c3b0d9615740b13f1.zip | |
Revert "HID: Increase maximum report size allowed by hid_field_extract()"
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
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-core.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 92387fc0bf18..4407cf549908 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1314,10 +1314,10 @@ 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); |