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| author | Anssi Hannula <anssi.hannula@iki.fi> | 2009-11-04 00:57:35 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2009-11-04 10:04:08 +0100 |
| commit | 1168df7e1cbfa4b45ba2bfd982ff535df50c273c (patch) | |
| tree | c619c65b41b5422f001f55b59e8bb183fd71b493 /drivers/hid/usbhid/hid-pidff.c | |
| parent | 80f506918fdaaca6b574ba931536a58ce015c7be (diff) | |
| download | lwn-1168df7e1cbfa4b45ba2bfd982ff535df50c273c.tar.gz lwn-1168df7e1cbfa4b45ba2bfd982ff535df50c273c.zip | |
HID: pidff - fix unnecessary loop iterations on reset
When encountering a strange value in the pool report, pidff_reset
will always refetch the report 20 times, even if one of the retries
results in a sane value. This is because a temporary variable being
used to store the value is not being updated inside the loop.
Fix it by using the value directly in the loop.
Reported-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/usbhid/hid-pidff.c')
| -rw-r--r-- | drivers/hid/usbhid/hid-pidff.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/hid/usbhid/hid-pidff.c b/drivers/hid/usbhid/hid-pidff.c index 484e3eec2f88..e565dbe91d97 100644 --- a/drivers/hid/usbhid/hid-pidff.c +++ b/drivers/hid/usbhid/hid-pidff.c @@ -1181,12 +1181,11 @@ static void pidff_reset(struct pidff_device *pidff) usbhid_wait_io(hid); if (pidff->pool[PID_SIMULTANEOUS_MAX].value) { - int sim_effects = pidff->pool[PID_SIMULTANEOUS_MAX].value[0]; - while (sim_effects < 2) { + while (pidff->pool[PID_SIMULTANEOUS_MAX].value[0] < 2) { if (i++ > 20) { printk(KERN_WARNING "hid-pidff: device reports " "%d simultaneous effects\n", - sim_effects); + pidff->pool[PID_SIMULTANEOUS_MAX].value[0]); break; } debug("pid_pool requested again"); |