From: Antonio Ospite <ospite@studenti.unina.it>
Date: Thu, 23 Feb 2012 14:26:44 +0000 (+0100)
Subject: am7xxx: initialize the 'transferred' variable before USB transfers
X-Git-Tag: v0.1.0~2
X-Git-Url: https://git.ao2.it/libam7xxx.git/commitdiff_plain/3c0bc8695b5eb170b423a1d7598bcad5014ed87a?hp=247e26853647d7a16983eb62709e4347f357bf91

am7xxx: initialize the 'transferred' variable before USB transfers

This makes sure the subsequent error messages print a sane value when
libusb fails without touching the variable.
---

diff --git a/src/am7xxx.c b/src/am7xxx.c
index 7ef981e..c02b539 100644
--- a/src/am7xxx.c
+++ b/src/am7xxx.c
@@ -181,7 +181,7 @@ static void dump_buffer(uint8_t *buffer, unsigned int len)
 static int read_data(am7xxx_device dev, uint8_t *buffer, unsigned int len)
 {
 	int ret;
-	int transferred;
+	int transferred = 0;
 
 	ret = libusb_bulk_transfer(dev, 0x81, buffer, len, &transferred, 0);
 	if (ret != 0 || (unsigned int)transferred != len) {
@@ -202,7 +202,7 @@ static int read_data(am7xxx_device dev, uint8_t *buffer, unsigned int len)
 static int send_data(am7xxx_device dev, uint8_t *buffer, unsigned int len)
 {
 	int ret;
-	int transferred;
+	int transferred = 0;
 
 #if DEBUG
 	printf("\nsending -->\n");