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From:   Jiada Wang <jiada_wang@mentor.com>
To:     <jikos@kernel.org>, <benjamin.tissoires@redhat.com>,
        <rydberg@bitmath.org>, <dmitry.torokhov@gmail.com>,
        <nick@shmanahar.org>, <bsz@semihalf.com>
CC:     <linux-input@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <erosca@de.adit-jv.com>, <Andrew_Gabbasov@mentor.com>,
        <jiada_wang@mentor.com>
Subject: [PATCH v7 37/48] Input: atmel_mxt_ts: return error from mxt_process_messages_until_invalid()
Date:   Wed, 12 Feb 2020 00:42:07 -0800
Message-ID: <20200212084218.32344-38-jiada_wang@mentor.com>
In-Reply-To: <20200212084218.32344-1-jiada_wang@mentor.com>
References: <20200212084218.32344-1-jiada_wang@mentor.com>
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From: Dean Jenkins <Dean_Jenkins@mentor.com>

mxt_process_messages_until_invalid() failed to propagate the error
code from mxt_read_and_process_messages() so return the error code.

Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Deepak Das <deepak_das@mentor.com>
Signed-off-by: George G. Davis <george_davis@mentor.com>
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 865c207a0d72..2a5a5a362a13 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -1561,6 +1561,8 @@ static int mxt_process_messages_until_invalid(struct mxt_data *data)
 	/* Read messages until we force an invalid */
 	do {
 		read = mxt_read_and_process_messages(data, count);
+		if (read < 0)
+			return read;
 		if (read < count)
 			return 0;
 	} while (--tries);
-- 
2.17.1