diff --git a/drivers/staging/most/aim-cdev/cdev.c b/drivers/staging/most/aim-cdev/cdev.c
index cfc32dff6512..252a17cf153c 100644
--- a/drivers/staging/most/aim-cdev/cdev.c
+++ b/drivers/staging/most/aim-cdev/cdev.c
@@ -204,7 +204,8 @@ static ssize_t aim_write(struct file *filp, const char __user *buf,
 	}
 	return actual_len - retval;
 error:
-	most_put_mbo(mbo);
+	if (mbo)
+		most_put_mbo(mbo);
 	return err;
 }