Initializing virname to NULL in cases where it was uninitialized.

clamd/onaccess_fan.c

@@ -72,7 +72,7 @@ static void onas_fan_exit(int sig)
 static int onas_fan_scanfile(int fan_fd, const char *fname, struct fanotify_event_metadata *fmd, int scan, int extinfo, struct thrarg *tharg)
 {
 	struct fanotify_response res;
-	const char *virname;
+	const char *virname = NULL;
 	int ret = 0;
 
     res.fd = fmd->fd;
@@ -336,7 +336,7 @@ static void cauth_exit(int sig)
 static int cauth_scanfile(const char *fname, int extinfo, struct thrarg *tharg)
 {
 	struct cb_context context;
-	const char *virname;
+	const char *virname = NULL;
 	int ret = 0, fd;
 
     context.filename = fname;

clamd/onaccess_scth.c

@@ -57,7 +57,7 @@ static void onas_scth_exit(int sig) {
 static int onas_scth_scanfile(const char *fname, int fd, int extinfo, struct scth_thrarg *tharg)
 {
     int ret = 0;
-    const char *virname;
+    const char *virname = NULL;
 
     return onas_scan(fname, fd, &virname, tharg->engine, tharg->options, extinfo);
 }

clamd/scanner.c

@@ -358,7 +358,7 @@ int scanfd(const client_conn_t *conn, unsigned long int *scanned,
 	   unsigned int options, const struct optstruct *opts, int odesc, int stream)
 {
     int ret, fd = conn->scanfd;
-	const char *virname;
+	const char *virname = NULL;
 	STATBUF statbuf;
 	struct cb_context context;
 	char fdstr[32];
@@ -425,7 +425,7 @@ int scanstream(int odesc, unsigned long int *scanned, const struct cl_engine *en
 	unsigned int port = 0, portscan, min_port, max_port;
 	unsigned long int quota = 0, maxsize = 0;
 	short bound = 0;
-	const char *virname;
+	const char *virname = NULL;
 	char buff[FILEBUFF];
 	char peer_addr[32];
 	struct cb_context context;

clamscan/manager.c

@@ -294,7 +294,7 @@ static void scanfile(const char *filename, struct cl_engine *engine, const struc
     int ret = 0, fd, included;
     unsigned i;
     const struct optstruct *opt;
-    const char *virname;
+    const char *virname = NULL;
     STATBUF sb;
     struct metachain chain;
     struct clamscan_cb_data data;