From: Frank Stettner <redacted>
Date: Tue, 17 Dec 2019 18:55:28 +0000 (+0100)
Subject: hp-3478a: Check for overflow.
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=675cb86f15c65893791fe5e4ec4914eb4484e6d6;p=libsigrok.git

hp-3478a: Check for overflow.
---

diff --git a/src/hardware/hp-3478a/protocol.c b/src/hardware/hp-3478a/protocol.c
index 74acd144..7842f2f4 100644
--- a/src/hardware/hp-3478a/protocol.c
+++ b/src/hardware/hp-3478a/protocol.c
@@ -497,6 +497,10 @@ SR_PRIV int hp_3478a_receive_data(int fd, int revents, void *cb_data)
 	if (sr_scpi_get_double(scpi, NULL, &devc->measurement) != SR_OK)
 		return FALSE;
 
+	/* Check for overflow. */
+	if (devc->measurement >= 9.998e+9)
+		devc->measurement = INFINITY;
+
 	/*
 	 * This is necessary to get the actual range for the encoding digits.
 	 * Must be called after reading the value, because it resets the