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authorBenjamin Tissoires <benjamin.tissoires@redhat.com>2019-06-05 15:44:05 +0300
committerBenjamin Tissoires <benjamin.tissoires@redhat.com>2019-06-05 16:14:53 +0300
commit15fc1b5c86128f91c8c6699c3b0d9615740b13f1 (patch)
tree174f6e72c44865a3c03973e881649c636e87f098 /drivers/hid
parentabf82e8f7e9af40a49e3d905187c662a43c96c8f (diff)
downloadlinux-15fc1b5c86128f91c8c6699c3b0d9615740b13f1.tar.xz
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.c6
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);