On Mon, 30 Jul 2012, Bruno Prémont wrote:
quoted hunk ↗ jump to hunk
Commit 4ea5454203d991ec85264f64f89ca8855fce69b0
[HID: Fix race condition between driver core and ll-driver] introduced
new locking around proce/remove functions that prevent any report/reply
from hardware to reach driver until it returned from probe.
As such, the ask-reply way to checking picoLCD firmware version during
probe is bound to timeout and let probe fail.
Disabling the check lets driver sucessfully probe again.
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
---
drivers/hid/hid-picolcd_core.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/hid/hid-picolcd_core.c b/drivers/hid/hid-picolcd_core.c
index 2d7ef68..42d0791 100644
--- a/drivers/hid/hid-picolcd_core.c
+++ b/drivers/hid/hid-picolcd_core.c
@@ -478,13 +478,13 @@ static int picolcd_probe_lcd(struct hid_device *hdev, struct picolcd_data *data)
{
int error;
- error = picolcd_check_version(hdev);
+/* error = picolcd_check_version(hdev);
if (error)
return error;
if (data->version[0] != 0 && data->version[1] != 3)
hid_info(hdev, "Device with untested firmware revision, please submit /sys/kernel/debug/hid/%s/rdesc for this device.\n",
- dev_name(&hdev->dev));
+ dev_name(&hdev->dev)); */
Please just remove it altogether, I don't see a reason to keep the
commented-out code in the in-tree driver.
Once the locking mess is sorted out, we can re-introduce it again as
necessary.
Thanks.
--
Jiri Kosina
SUSE Labs