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Input: ili210x - fix ili251x_read_touch_data() return value

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[ 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: ef536abd3a ("Input: ili210x - define and use chip operations structure")
Signed-off-by: John Keeping <jkeeping@inmusicbrands.com>
Link: https://lore.kernel.org/r/20240523085624.2295988-1-jkeeping@inmusicbrands.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
John Keeping
2024-05-23 09:56:24 +01:00
committed by Greg Kroah-Hartman
parent f0ef5ca85f
commit b6be2b025c
1 changed files with 2 additions and 2 deletions
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4
drivers/input/touchscreen/ili210x.c
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@@ -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;