This is a note to let you know that I've just added the patch titled
Input: ili210x - fix ili251x_read_touch_data() return value
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
input-ili210x-fix-ili251x_read_touch_data-return-val.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e21e6e4f6e19b261f3560544cf6ce437212f8aab
Author: John Keeping <jkeeping@xxxxxxxxxxxxxxxxx>
Date: Thu May 23 09:56:24 2024 +0100
Input: ili210x - fix ili251x_read_touch_data() return value
[ Upstream commit 9f0fad0382124e7e23b3c730fa78818c22c89c0a ]
The caller of this function treats all non-zero values as an error, so
the return value of i2c_master_recv() cannot be returned directly.
This fixes touch reporting when there are more than 6 active touches.
Fixes: ef536abd3afd1 ("Input: ili210x - define and use chip operations structure")
Signed-off-by: John Keeping <jkeeping@xxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240523085624.2295988-1-jkeeping@xxxxxxxxxxxxxxxxx
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c
index f437eefec94ad..9452a12ddb096 100644
--- a/drivers/input/touchscreen/ili210x.c
+++ b/drivers/input/touchscreen/ili210x.c
@@ -231,8 +231,8 @@ static int ili251x_read_touch_data(struct i2c_client *client, u8 *data)
if (!error && data[0] == 2) {
error = i2c_master_recv(client, data + ILI251X_DATA_SIZE1,
ILI251X_DATA_SIZE2);
- if (error >= 0 && error != ILI251X_DATA_SIZE2)
- error = -EIO;
+ if (error >= 0)
+ error = error == ILI251X_DATA_SIZE2 ? 0 : -EIO;
}
return error;
