linux-kernel - [PATCH 4.19 37/73] i2c: synquacer: fix synquacer_i2c

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Date:   Fri,  7 Jun 2019 17:39:24 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Okamoto Satoru <okamoto.satoru@...ionext.com>,
        Masahisa Kojima <masahisa.kojima@...aro.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Wolfram Sang <wsa@...-dreams.de>
Subject: [PATCH 4.19 37/73] i2c: synquacer: fix synquacer_i2c_doxfer() return value

From: Masahisa Kojima <masahisa.kojima@...aro.org>

commit ff9378904d9d7a3fcb8406604e089e535e357b1d upstream.

master_xfer should return the number of messages successfully
processed.

Fixes: 0d676a6c4390 ("i2c: add support for Socionext SynQuacer I2C controller")
Cc: <stable@...r.kernel.org> # v4.19+
Signed-off-by: Okamoto Satoru <okamoto.satoru@...ionext.com>
Signed-off-by: Masahisa Kojima <masahisa.kojima@...aro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@...aro.org>
Signed-off-by: Wolfram Sang <wsa@...-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/i2c/busses/i2c-synquacer.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/i2c/busses/i2c-synquacer.c
+++ b/drivers/i2c/busses/i2c-synquacer.c
@@ -356,7 +356,7 @@ static int synquacer_i2c_doxfer(struct s
 	/* wait 2 clock periods to ensure the stop has been through the bus */
 	udelay(DIV_ROUND_UP(2 * 1000, i2c->speed_khz));
 
-	return 0;
+	return ret;
 }
 
 static irqreturn_t synquacer_i2c_isr(int irq, void *dev_id)