From: Martin Ling <redacted>
Date: Sun, 28 Sep 2014 11:54:56 +0000 (+0100)
Subject: Fix similar broken error handling on several serial calls.
X-Git-Tag: libsigrok-0.4.0~895
X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=commitdiff_plain;h=081c214eace0c9088cbcbd9a3d448f6fac5e98f4

Fix similar broken error handling on several serial calls.
---

diff --git a/src/hardware/agilent-dmm/api.c b/src/hardware/agilent-dmm/api.c
index e4240e62..b7ae7fb2 100644
--- a/src/hardware/agilent-dmm/api.c
+++ b/src/hardware/agilent-dmm/api.c
@@ -116,9 +116,8 @@ static GSList *scan(GSList *options)
 		return NULL;
 
 	serial_flush(serial);
-	if (serial_write_blocking(serial, "*IDN?\r\n", 7) == -1) {
-		sr_err("Unable to send identification string: %s.",
-		       strerror(errno));
+	if (serial_write_blocking(serial, "*IDN?\r\n", 7) < 7) {
+		sr_err("Unable to send identification string.");
 		return NULL;
 	}
 
diff --git a/src/hardware/agilent-dmm/sched.c b/src/hardware/agilent-dmm/sched.c
index df651134..b555cd8b 100644
--- a/src/hardware/agilent-dmm/sched.c
+++ b/src/hardware/agilent-dmm/sched.c
@@ -140,8 +140,8 @@ static int agdmm_send(const struct sr_dev_inst *sdi, const char *cmd)
 		strcat(buf, "\r\n");
 	else
 		strcat(buf, "\n\r\n");
-	if (serial_write_blocking(serial, buf, strlen(buf)) == -1) {
-		sr_err("Failed to send: %s.", strerror(errno));
+	if (serial_write_blocking(serial, buf, strlen(buf)) < strlen(buf)) {
+		sr_err("Failed to send.");
 		return SR_ERR;
 	}
 
diff --git a/src/hardware/atten-pps3xxx/api.c b/src/hardware/atten-pps3xxx/api.c
index 75a1fbbd..a0f84152 100644
--- a/src/hardware/atten-pps3xxx/api.c
+++ b/src/hardware/atten-pps3xxx/api.c
@@ -130,9 +130,8 @@ static GSList *scan(GSList *options, int modelid)
 	memset(packet, 0, PACKET_SIZE);
 	packet[0] = 0xaa;
 	packet[1] = 0xaa;
-	if (serial_write_blocking(serial, packet, PACKET_SIZE) == -1) {
-		sr_err("Unable to write while probing for hardware: %s",
-				strerror(errno));
+	if (serial_write_blocking(serial, packet, PACKET_SIZE) < PACKET_SIZE) {
+		sr_err("Unable to write while probing for hardware.");
 		return NULL;
 	}
 	/* The device responds with a 24-byte packet when it receives a packet.
diff --git a/src/hardware/atten-pps3xxx/protocol.c b/src/hardware/atten-pps3xxx/protocol.c
index 66ecb7a2..95137d2e 100644
--- a/src/hardware/atten-pps3xxx/protocol.c
+++ b/src/hardware/atten-pps3xxx/protocol.c
@@ -86,8 +86,8 @@ SR_PRIV void send_packet(const struct sr_dev_inst *sdi, uint8_t *packet)
 	struct sr_serial_dev_inst *serial;
 
 	serial = sdi->conn;
-	if (serial_write_blocking(serial, packet, PACKET_SIZE) == -1)
-		sr_dbg("Failed to send packet: %s", strerror(errno));
+	if (serial_write_blocking(serial, packet, PACKET_SIZE) < PACKET_SIZE)
+		sr_dbg("Failed to send packet.");
 	dump_packet("sent", packet);
 }
 
diff --git a/src/hardware/colead-slm/protocol.c b/src/hardware/colead-slm/protocol.c
index 6b89ea14..6864cb68 100644
--- a/src/hardware/colead-slm/protocol.c
+++ b/src/hardware/colead-slm/protocol.c
@@ -207,8 +207,8 @@ SR_PRIV int colead_slm_receive_data(int fd, int revents, void *cb_data)
 			 * we don't want it. */
 			return TRUE;
 		/* Got 0x10, "measurement ready". */
-		if (serial_write_blocking(serial, "\x20", 1) == -1)
-			sr_err("unable to send command: %s", strerror(errno));
+		if (serial_write_blocking(serial, "\x20", 1) < 1)
+			sr_err("unable to send command");
 		else {
 			devc->state = COMMAND_SENT;
 			devc->buflen = 0;
diff --git a/src/hardware/conrad-digi-35-cpu/protocol.c b/src/hardware/conrad-digi-35-cpu/protocol.c
index cfabdc7b..6b1d0d56 100644
--- a/src/hardware/conrad-digi-35-cpu/protocol.c
+++ b/src/hardware/conrad-digi-35-cpu/protocol.c
@@ -48,8 +48,8 @@ SR_PRIV int send_msg1(const struct sr_dev_inst *sdi, char cmd, int param)
 
 	sr_spew("send_msg1(): %c%c%c%c\\r", buf[0], buf[1], buf[2], buf[3]);
 
-	if (serial_write_blocking(serial, buf, sizeof(buf)) == -1) {
-		sr_err("Write error for cmd=%c: %d %s", cmd, errno, strerror(errno));
+	if (serial_write_blocking(serial, buf, sizeof(buf)) < sizeof(buf)) {
+		sr_err("Write error for cmd=%c", cmd);
 		return SR_ERR;
 	}
 
diff --git a/src/hardware/gmc-mh-1x-2x/protocol.c b/src/hardware/gmc-mh-1x-2x/protocol.c
index cfcbc4dc..3ba4f4ff 100644
--- a/src/hardware/gmc-mh-1x-2x/protocol.c
+++ b/src/hardware/gmc-mh-1x-2x/protocol.c
@@ -1307,7 +1307,7 @@ int req_meas14(const struct sr_dev_inst *sdi)
 	devc->cmd_idx = 0;
 	create_cmd_14(devc->addr, 8, params, msg);
 	devc->req_sent_at = g_get_monotonic_time();
-	if (serial_write_blocking(serial, msg, sizeof(msg)) == -1) {
+	if (serial_write_blocking(serial, msg, sizeof(msg)) < sizeof(msg)) {
 		return SR_ERR;
 	}
 
@@ -1350,7 +1350,7 @@ int req_stat14(const struct sr_dev_inst *sdi, gboolean power_on)
 
 	/* Write message and wait for reply */
 	devc->req_sent_at = g_get_monotonic_time();
-	if (serial_write_blocking(serial, msg, sizeof(msg)) == -1) {
+	if (serial_write_blocking(serial, msg, sizeof(msg)) < sizeof(msg)) {
 		return SR_ERR;
 	}