linux-kernel - [PATCH v2 07/10] i2c: xiic: Return value of xiic

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Message-ID: <20210626102806.15402-8-raviteja.narayanam@xilinx.com>
Date:   Sat, 26 Jun 2021 15:58:03 +0530
From:   Raviteja Narayanam <raviteja.narayanam@...inx.com>
To:     <linux-i2c@...r.kernel.org>, <michal.simek@...inx.com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <git@...inx.com>, <marex@...x.de>,
        <joe@...ches.com>,
        Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>,
        Raviteja Narayanam <raviteja.narayanam@...inx.com>
Subject: [PATCH v2 07/10] i2c: xiic: Return value of xiic_reinit

From: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>

Check the return value of xiic_reinit.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
Signed-off-by: Raviteja Narayanam <raviteja.narayanam@...inx.com>
---
 drivers/i2c/busses/i2c-xiic.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 007a78215a90..0d76261f1841 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -504,6 +504,7 @@ static irqreturn_t xiic_process(int irq, void *dev_id)
 	struct xiic_i2c *i2c = dev_id;
 	u32 pend, isr, ier;
 	u32 clr = 0;
+	int ret;
 
 	/* Get the interrupt Status from the IPIF. There is no clearing of
 	 * interrupts in the IPIF. Interrupts must be cleared at the source.
@@ -540,7 +541,9 @@ static irqreturn_t xiic_process(int irq, void *dev_id)
 		 * fifos and the next message is a TX with len 0 (only addr)
 		 * reset the IP instead of just flush fifos
 		 */
-		xiic_reinit(i2c);
+		ret = xiic_reinit(i2c);
+		if (!ret)
+			dev_dbg(i2c->adap.dev.parent, "reinit failed\n");
 
 		if (i2c->rx_msg)
 			xiic_wakeup(i2c, STATE_ERROR);
-- 
2.25.1