From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiada Wang Subject: [PATCH v1 49/63] Input: Atmel: Improve error handling in mxt_initialize_input_device() Date: Fri, 16 Aug 2019 17:37:10 +0900 Message-ID: <20190816083724.19341-5-jiada_wang@mentor.com> References: <20190816083724.19341-1-jiada_wang@mentor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Return-path: In-Reply-To: <20190816083724.19341-1-jiada_wang@mentor.com> Sender: linux-kernel-owner@vger.kernel.org To: nick@shmanahar.org, dmitry.torokhov@gmail.com Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, jiada_wang@mentor.com, george_davis@mentor.com List-Id: linux-input@vger.kernel.org From: Deepak Das Currently Driver probe continues with a warning message when it fails to get the proper multitouch object configurations like TouchScreen resolution. But Driver probe should fail in case of above scneario because it will not behave as expected without the proper touchscreen configurations. This commit modifies mxt_initialize_input_device() to return error when it fails to get the proper touch screen configurations. Signed-off-by: Deepak Das Signed-off-by: Dean Jenkins Signed-off-by: George G. Davis Signed-off-by: Jiada Wang --- drivers/input/touchscreen/atmel_mxt_ts.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 27b908a50b66..b17af89a4711 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -2749,15 +2749,19 @@ static int mxt_initialize_input_device(struct mxt_data *data) case MXT_TOUCH_MULTI_T9: num_mt_slots = data->T9_reportid_max - data->T9_reportid_min + 1; error = mxt_read_t9_resolution(data); - if (error) - dev_warn(dev, "Failed to initialize T9 resolution\n"); + if (error) { + dev_err(dev, "Failed to initialize T9 resolution\n"); + return error; + } break; case MXT_TOUCH_MULTITOUCHSCREEN_T100: num_mt_slots = data->num_touchids; error = mxt_read_t100_config(data); - if (error) - dev_warn(dev, "Failed to read T100 config\n"); + if (error) { + dev_err(dev, "Failed to read T100 config\n"); + return error; + } break; default: -- 2.19.2