1 files changed, 2 insertions, 1 deletions

diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c
index 138379896061..1bf298d214b9 100644
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -2475,7 +2475,8 @@ static inline void snd_es1968_free_gameport(struct es1968 *chip) { }
 static int snd_es1968_free(struct es1968 *chip)
 {
         if (chip->io_port) {
-                synchronize_irq(chip->irq);
+                if (chip->irq >= 0)
+                        synchronize_irq(chip->irq);
                 outw(1, chip->io_port + 0x04); /* clear WP interrupts */
                 outw(0, chip->io_port + ESM_PORT_HOST_IRQ); /* disable IRQ */
         }