From: Uwe Hermann <redacted>
Date: Sun, 13 Feb 2011 10:27:52 +0000 (+0100)
Subject: Quickfix for a segfault with file input via -i.
X-Git-Tag: libsigrok-0.1.0~330
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=218557b85a308adc6ac533eb3f33d3dee17c13f8;p=libsigrok.git

Quickfix for a segfault with file input via -i.

Stuff like

  ./bin/sigrok-cli -i rnd.dd -a transitioncounter

would segfault (rnd.dd consists of random bytes) because device->plugin
was NULL and was being dereferenced.

Thanks Olivier Fauchon <redacted> for reporting.
---

diff --git a/device.c b/device.c
index 2dee902c..04d463c1 100644
--- a/device.c
+++ b/device.c
@@ -235,6 +235,9 @@ gboolean sr_device_has_hwcap(struct sr_device *device, int hwcap)
 {
 	int *capabilities, i;
 
+	if (!device || !device->plugin)
+		return;
+
 	if ((capabilities = device->plugin->get_capabilities()))
 		for (i = 0; capabilities[i]; i++)
 			if (capabilities[i] == hwcap)