From: asterix <asterix@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Thu, 22 Jul 2010 15:17:46 +0000 (+0000)
Subject: Add missing stop and check errors.
X-Git-Tag: 2.6.0~294
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;ds=sidebyside;h=6ab5f756bf0002dfb6b686021ff9e1d05bb44670;hp=-c;p=bertos.git

Add missing stop and check errors.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4048 38d2e660-2303-0410-9eaa-f027e97ec537
---

6ab5f756bf0002dfb6b686021ff9e1d05bb44670
diff --git a/bertos/drv/lm75.c b/bertos/drv/lm75.c
index db8f8a94..5d24e0ae 100644
--- a/bertos/drv/lm75.c
+++ b/bertos/drv/lm75.c
@@ -62,10 +62,20 @@ deg_t lm75_read(uint8_t sens_addr)
 	int16_t degree;
 	int16_t deci_degree;
 
-	i2c_start_w(SELECT_ADDRESS(sens_addr));
-	i2c_put(LM75_PAD_BYTE);
-	i2c_start_r(SELECT_ADDRESS(sens_addr));
-	i2c_recv(data, sizeof(data));
+	if( !(i2c_start_w(SELECT_ADDRESS(sens_addr))
+		&& i2c_put(LM75_PAD_BYTE)
+		&& i2c_start_r(SELECT_ADDRESS(sens_addr))) )
+	{
+		i2c_stop();
+		return EOF;
+	}
+
+	if ( !i2c_recv(data, sizeof(data)) )
+	{
+		i2c_stop();
+		return EOF;
+	}
+	i2c_stop();
 
 	degree = (int16_t)data[0];
 	deci_degree = (int16_t)(((data[1] >> 7) & 1 ) * 5);