X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fcommon%2Fusb.c;h=6e678fdb401d1d681000fc3a6e273c7374656957;hb=945e4343e2be4ad9e70e1a995182988b2331e0bd;hp=c4d78f90a236acd036c4ad7e60a1ea902f225fa1;hpb=6640324f7f2730dc5a120af90a849b8d8fee52fa;p=libsigrok.git

diff --git a/hardware/common/usb.c b/hardware/common/usb.c
index c4d78f90..6e678fdb 100644
--- a/hardware/common/usb.c
+++ b/hardware/common/usb.c
@@ -33,14 +33,7 @@
 #define SUBCLASS_USBTMC 0x03
 #define USBTMC_USB488   0x01
 
-/* Message logging helpers with subsystem-specific prefix string. */
-#define LOG_PREFIX "usb: "
-#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
-#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
-#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
-#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
-#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
-#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
+#define LOG_PREFIX "usb"
 
 /**
  * Find USB devices according to a connection string.
@@ -267,8 +260,11 @@ SR_PRIV int usb_callback(int fd, int revents, void *cb_data)
 
 	g_mutex_lock(&ctx->usb_mutex);
 	ret = ctx->usb_cb(fd, revents, ctx->usb_cb_data);
-	ResetEvent(ctx->usb_event);
-	g_mutex_unlock(&ctx->usb_mutex);
+
+	if (ctx->usb_thread_running) {
+		ResetEvent(ctx->usb_event);
+		g_mutex_unlock(&ctx->usb_mutex);
+	}
 
 	return ret;
 }