From: Uwe Hermann <redacted>
Date: Wed, 18 Jan 2012 23:32:02 +0000 (+0100)
Subject: sr: g_free()/g_string_free() can handle NULL input.
X-Git-Tag: libsigrok-0.1.0~175
X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=commitdiff_plain;h=66410a8617185da7abf4ca21da99e934b22351bb

sr: g_free()/g_string_free() can handle NULL input.
---

diff --git a/device.c b/device.c
index 72cba338..9b68eb0b 100644
--- a/device.c
+++ b/device.c
@@ -205,16 +205,12 @@ int sr_device_probe_clear(struct sr_device *device, int probenum)
 	}
 
 	/* If the probe has a name, remove it. */
-	if (p->name) {
-		g_free(p->name);
-		p->name = NULL;
-	}
+	g_free(p->name);
+	p->name = NULL;
 
 	/* If the probe has a trigger, remove it. */
-	if (p->trigger) {
-		g_free(p->trigger);
-		p->trigger = NULL;
-	}
+	g_free(p->trigger);
+	p->trigger = NULL;
 
 	return SR_OK;
 }
@@ -351,8 +347,7 @@ int sr_device_probe_name(struct sr_device *device, int probenum,
 	/* TODO: Sanity check on 'name'. */
 
 	/* If the probe already has a name, kill it first. */
-	if (p->name)
-		g_free(p->name);
+	g_free(p->name);
 
 	p->name = g_strdup(name);
 
@@ -387,7 +382,7 @@ int sr_device_trigger_clear(struct sr_device *device)
 	for (pnum = 1; pnum <= g_slist_length(device->probes); pnum++) {
 		p = sr_device_probe_find(device, pnum);
 		/* TODO: Silently ignore probes which cannot be found? */
-		if (p && p->trigger) {
+		if (p) {
 			g_free(p->trigger);
 			p->trigger = NULL;
 		}
@@ -433,8 +428,7 @@ int sr_device_trigger_set(struct sr_device *device, int probenum,
 	}
 
 	/* If the probe already has a trigger, kill it first. */
-	if (p->trigger)
-		g_free(p->trigger);
+	g_free(p->trigger);
 
 	p->trigger = g_strdup(trigger);
 
diff --git a/hwplugin.c b/hwplugin.c
index 8f6bed0f..23bbef44 100644
--- a/hwplugin.c
+++ b/hwplugin.c
@@ -200,9 +200,7 @@ void sr_device_instance_free(struct sr_device_instance *sdi)
 		break;
 	}
 
-	if (sdi->priv)
-		g_free(sdi->priv);
-
+	g_free(sdi->priv);
 	g_free(sdi->vendor);
 	g_free(sdi->model);
 	g_free(sdi->version);
diff --git a/output/ols.c b/output/ols.c
index 16b288ac..8cc613ac 100644
--- a/output/ols.c
+++ b/output/ols.c
@@ -85,8 +85,7 @@ static int event(struct sr_output *o, int event_type, char **data_out,
 	ctx = o->internal;
 
 	if (ctx && event_type == SR_DF_END) {
-		if (ctx->header)
-			g_string_free(ctx->header, TRUE);
+		g_string_free(ctx->header, TRUE);
 		free(o->internal);
 		o->internal = NULL;
 	}
diff --git a/strutil.c b/strutil.c
index ef6d9633..cd2ab449 100644
--- a/strutil.c
+++ b/strutil.c
@@ -166,8 +166,7 @@ char **sr_parse_triggerstring(struct sr_device *device,
 
 	if (error) {
 		for (i = 0; i < max_probes; i++)
-			if (triggerlist[i])
-				g_free(triggerlist[i]);
+			g_free(triggerlist[i]);
 		g_free(triggerlist);
 		triggerlist = NULL;
 	}