From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Date: Wed, 31 May 2017 09:31:54 +0000 (-0300)
Subject: [media] tc358743: Handle return value of clk_prepare_enable
X-Git-Tag: android-x86-8.1-r1~2965^2~284
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=43b288baa8f39054dc5e7102a329180bbeb1e115;p=android-x86%2Fkernel.git

[media] tc358743: Handle return value of clk_prepare_enable

clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
---

diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index 3e5b09030303..8f8bb9ee3e6d 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -1731,7 +1731,11 @@ static int tc358743_probe_of(struct tc358743_state *state)
 
 	state->bus = endpoint->bus.mipi_csi2;
 
-	clk_prepare_enable(refclk);
+	ret = clk_prepare_enable(refclk);
+	if (ret) {
+		dev_err(dev, "Failed! to enable clock\n");
+		goto free_endpoint;
+	}
 
 	state->pdata.refclk_hz = clk_get_rate(refclk);
 	state->pdata.ddc5v_delay = DDC5V_DELAY_100_MS;