diff options
| author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2014-04-24 18:26:38 -0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2014-05-13 16:42:50 +0200 |
| commit | dcce583792d2b9a83dd9cb62551831f09f971fda (patch) | |
| tree | b699e7bed4a729a10bf0fa5cb110bbd44483a167 /arch/blackfin/kernel/perf_event.c | |
| parent | f15475c397f496c0907be5e95f8556c8f5908d54 (diff) | |
HID: rmi: do not fetch more than 16 bytes in a query
A firmware bug is present on the XPS Haswell edition which silently
split the request in two responses when the caller ask for a read of
more than 16 bytes.
The FW sends the first 16 then the 4 next, but it says that it answered
the 20 bytes in the first report.
This occurs only on the retrieving of the min/max of X and Y of the F11
function.
We only use the first 10 bytes of the Ctrl register, so we can get only
those 10 bytes to prevent the bug from happening.
Resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=1090161
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'arch/blackfin/kernel/perf_event.c')
0 files changed, 0 insertions, 0 deletions