6.6-stable review patch. If anyone has any objections, please let me know.
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From: Emanuele Ghidoli emanuele.ghidoli@toradex.com
[ Upstream commit 7d0b18cd5dc7429917812963611d961fd93cb44d ]
For different reasons i2c transaction may fail or report id in the message may be wrong. Avoid closing the frame in this case as it will result in all contacts being dropped, indicating that nothing is touching the screen anymore, while usually it is not the case.
Fixes: 42370681bd46 ("Input: Add support for ILITEK Lego Series") Signed-off-by: Emanuele Ghidoli emanuele.ghidoli@toradex.com Signed-off-by: Francesco Dolcini francesco.dolcini@toradex.com Link: https://lore.kernel.org/r/20240805085511.43955-2-francesco@dolcini.it Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/input/touchscreen/ilitek_ts_i2c.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/input/touchscreen/ilitek_ts_i2c.c b/drivers/input/touchscreen/ilitek_ts_i2c.c index 2f872e95fbbad..f70af5a173b34 100644 --- a/drivers/input/touchscreen/ilitek_ts_i2c.c +++ b/drivers/input/touchscreen/ilitek_ts_i2c.c @@ -160,15 +160,14 @@ static int ilitek_process_and_report_v6(struct ilitek_ts_data *ts) error = ilitek_i2c_write_and_read(ts, NULL, 0, 0, buf, 64); if (error) { dev_err(dev, "get touch info failed, err:%d\n", error); - goto err_sync_frame; + return error; }
report_max_point = buf[REPORT_COUNT_ADDRESS]; if (report_max_point > ts->max_tp) { dev_err(dev, "FW report max point:%d > panel info. max:%d\n", report_max_point, ts->max_tp); - error = -EINVAL; - goto err_sync_frame; + return -EINVAL; }
count = DIV_ROUND_UP(report_max_point, packet_max_point); @@ -178,7 +177,7 @@ static int ilitek_process_and_report_v6(struct ilitek_ts_data *ts) if (error) { dev_err(dev, "get touch info. failed, cnt:%d, err:%d\n", count, error); - goto err_sync_frame; + return error; } }
@@ -203,10 +202,10 @@ static int ilitek_process_and_report_v6(struct ilitek_ts_data *ts) ilitek_touch_down(ts, id, x, y); }
-err_sync_frame: input_mt_sync_frame(input); input_sync(input); - return error; + + return 0; }
/* APIs of cmds for ILITEK Touch IC */