ALSA: firewire-lib: Fix sparse warning of incorrect type in assignment

__be32 value should not be assigned directly to bool value.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/cmp.c

@@ -164,7 +164,9 @@ int cmp_connection_check_used(struct cmp_connection *c, bool *used)
 			c->resources.unit, TCODE_READ_QUADLET_REQUEST,
 			pcr_address(c), &pcr, 4, 0);
 	if (err >= 0)
-		*used = (pcr & cpu_to_be32(PCR_BCAST_CONN | PCR_P2P_CONN_MASK));
+		*used = !!(pcr & cpu_to_be32(PCR_BCAST_CONN |
+					     PCR_P2P_CONN_MASK));
+
 	return err;
 }
 EXPORT_SYMBOL(cmp_connection_check_used);