1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/char/dsp56k.c b/drivers/char/dsp56k.c
index acbfe1c49b4d..a69c65283260 100644
--- a/drivers/char/dsp56k.c
+++ b/drivers/char/dsp56k.c
@@ -136,7 +136,7 @@ static int sizeof_bootstrap = 375;
 
 
 static struct dsp56k_device {
-        long in_use;
+        unsigned long in_use;
         long maxio, timeout;
         int tx_wsize, rx_wsize;
 } dsp56k;