X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fdevice.c;h=aa499c8d74252ad07a37cf54afbec3b1233196ce;hb=95723b1e178ff2f8f30d4d338840da4f61b3643b;hp=a8f6f2b4dce9c0695961cbd1ec618f4d5f201ab3;hpb=5801ce7840c72775fbcfaf39e0587f767f070efd;p=libsigrok.git

diff --git a/src/device.c b/src/device.c
index a8f6f2b4..aa499c8d 100644
--- a/src/device.c
+++ b/src/device.c
@@ -136,7 +136,9 @@ SR_API int sr_dev_channel_enable(struct sr_channel *channel, gboolean state)
 }
 
 /* Returns the next enabled channel, wrapping around if necessary. */
+/** @private */
 SR_PRIV struct sr_channel *sr_next_enabled_channel(const struct sr_dev_inst *sdi,
+
 		struct sr_channel *cur_channel)
 {
 	struct sr_channel *next_channel;
@@ -489,6 +491,9 @@ SR_PRIV struct sr_usbtmc_dev_inst *sr_usbtmc_dev_inst_new(const char *device)
 /** @private */
 SR_PRIV void sr_usbtmc_dev_inst_free(struct sr_usbtmc_dev_inst *usbtmc)
 {
+	if (!usbtmc)
+		return;
+
 	g_free(usbtmc->device);
 	g_free(usbtmc);
 }